Obama urges voters to secure the change he started

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The Obama family takes to the stage as the gathering draws to a close on Thursday, September 6, the final day of the Democratic National Convention in Charlotte, North Carolina. See the best photos from the Republican National Convention.

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U.S. President Barack Obama kisses first lady Michelle Obama after giving his acceptance speech on Thursday.

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Barack Obama embraces his wife, Michelle, after giving his acceptance speech on Thursday.

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Barack Obama waves on stage on Thursday as he makes his acceptance speech.

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U.S. President Barack Obama accepts the Democratic Party's nomination on Thursday.

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Barack Obama speaks on stage to accept the nomination for president on Thursday.

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First lady Michelle Obama, with daughters Malia, left, and Sasha, smiles as Barack Obama delivers his acceptance speech on Thursday.

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Barack Obama delivers his acceptance speech on Thursday.

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First lady Michelle Obama introduces her husband on Thursday. She gave a full speech on Tuesday night.

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First lady Michelle Obama sits with Jill Biden as Vice President Joe Biden speaks on Thursday.

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Attendees watch a video tribute for Barack Obama on Thursday.

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Barack Obama waves from the stage on Thursday.

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Crowds react to a speech at the Time Warner Cable Arena in Charlotte, North Carolina, on Thursday.

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Vice President Joe Biden gives his acceptance speech to run for a second term on Thursday.

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Actress Eva Longoria speaks at the DNC on Thursday.

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Biden walks onstage during the final day of the convention on Thursday.

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First lady Michelle Obama sits with Dr. Jill Biden on Thursday as Joe Biden accepts the vice presidential nomination.

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Caroline Kennedy addresses delegates on Thursday.

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U.S. Sen. John Kerry of Massachusetts waves onstage Thursday.

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Obama campaign co-chair Eva Longoria waves to the audience on Thursday.

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Attendees hold signs that say "Thank You" for miltary veterans on Thursday.

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First lady Michelle Obama attends the final day of the Democratic National Convention on Thursday.

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Former U.S. Rep. Gabrielle Giffords stands on stage during the final day of the Democratic National Convention.

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U.S. Rep. John Lewis of Georgia speaks to delegates on Thursday.

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Loretta Harper of Nevada cheers on Thursday.

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Singer Mary J. Blige walks on stage on Thursday.

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DNC Chair and Los Angeles Mayor Antonio Villaraigosa, left, talks with Democratic National Committee Chair and Florida Rep. Debbie Wasserman Schultz on Thursday.

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Vice President Joe Biden waves as he stands with his wife Jill Biden and family after being nominated on Thursday.

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An Uncle Sam impersonator makes his way across the floor at the Time Warner Cable Arena on Thursday.

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Actor Jon Hamm, right, attends the final day of the Democratic National Convention on Thursday.

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Gus Mansour holds up a poster of President Barack Obama on Thursday.

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Actress Scarlett Johansson addresses delegates on Thursday.

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Actress Kerry Washington speaks to delegates on Thursday.

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Musican Dave Grohl of the Foo Fighters performs during the final day of the Democratic National Convention on Thursday.

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Delaware Attorney General Beau Biden gestures during his speech to nominate his father Joe Biden for the office of vice president on Thursday.

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Delegate Brian Fadie of Nevada watches the program on Thursday.

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Former Michigan Gov. Jennifer Granholm gestures during her speech on Thursday.

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Caroline Kennedy speaks to the delegates on Thursday.

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Former U.S. Rep. Gabrielle Giffords, right, recites the Pledge of Allegiance on stage with Democratic National Committee Chair Debbie Wasserman Schultz on Thursday.

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Delegates sit around a large cutout of President Obama's head during the final day of the convention on Thursday.

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A woman salutes during the DNC on Thursday.

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U.S. Rep. Barney Frank of Massachusetts takes the stage on Thursday.

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Musician James Taylor performs at the convention on Thursday.

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Supporters pray during an invocation on Thursday.

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Singer Marc Anthony walks onto the stage to sing the national anthem on Thursday.

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Attendees sing and dance as musician James Taylor performs on Thursday.

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Two women run for cover from the pouring rain during the final day of the convention on Thursday.

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People in the stands wait for the start of the third day of the Democratic National Convention on Thursday.

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President Bill Clinton speaks on Wednesday, September 5.

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Former President Bill Clinton embraces President Barack Obama at the end of his speech Wednesday.

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The crowd cheers as Bill Clinton makes his case Wednesday for the re-election of Barack Obama.

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A person holds a sign that says "Bin Laden Is Dead, GM Is Alive" on Thursday.

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Bill Clinton formally nominates President Barack Obama for a second term in his highly anticipated speech.

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First lady Michelle Obama receives a standing ovation Wednesday. Bill Clinton praised the president for having "the good sense to marry Michelle Obama."

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U.S. Vice President Joe Biden speaks on Thursday.

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Delegates wave union signs supporting Barack Obama on Wednesday.

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U.S. Senate candidate Elizabeth Warren of Massachusetts waves to the crowd Wednesday. A consumer advocate, she complained that people today "feel like the system is rigged against them."

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U.S. Rep. Chris Van Hollen of Maryland speaks on day two of the DNC.

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Chicago Mayor Rahm Emanuel claps while listening to Wednesday's speeches. He spoke Tuesday night.

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Cuban-American actress and talk show host Cristina Saralegui endorses President Barack Obama on Wednesday.

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Planned Parenthood President Cecile Richards walks off stage after her speech Wednesday.

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Delegates cheer during Wednesday's program.

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Audience members wave signs Wednesday in support of the American auto industry.

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House Minority Leader Nancy Pelosi speaks Wednesday.

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U.S. Rep. Karen Bass of California speaks before delegates on Wednesday night.

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U.S. Secretary of Education Arne Duncan speaks on Wednesday.

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A guard stands by as former North Carolina Gov. Jim Hunt speaks on Wednesday.

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A choir performs on stage during the DNC on Wednesday.

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Two men in vests hold a pile of American flags on Wednesday.

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People pose during the official convention photography during Day 2 of the Democratic National Convention at Time Warner Cable Arena on Wednesday.

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A tri-colored hat sporting the Democratic party's mascot sits on a chair on Wednesday.

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Sikh supporters hold up a sign on Wednesday.

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A woman reacts as Missouri Rep. Emanuel Cleaver II, chair of the Congressional Black Caucus, speaks on Wednesday.

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Rep. Emanuel Cleaver II, chair of the Congressional Black Caucus, speaks to delegates on Wednesday.

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Olympic gymnast Gabby Douglas leads the Pledge of Allegiance as the West Charlotte High School ROTC presents the colors on Wednesday.

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Delegate Gloria Goodwin wears earrings depicting President Barack Obama and first lady Michelle Obama on Wednesday.

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Ruby Gilliam of Ohio salutes the flag on Wednesday.

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Olympic gymnast Gabby Douglas waves after leading the Pledge of Allegiance on Wednesday.

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Priscilla Marquez and Evie Walls from Arizona pose in the Google photo booth on Wednesday.

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A police officer stands near golf carts outside the Time Warner Cable Arena on Wednesday.

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First lady Michelle Obama wraps up day one of the Democratic National Convention in Charlotte, North Carolina, on Tuesday, September 4.

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A sea of signs welcomes the first lady onto the stage Tuesday at the Time Warner Cable Arena.

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Delegates listen to Michelle Obama's speech Tuesday. The first lady offered a personal perspective on why her husband should be re-elected.

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Texas Rep. Joaquin Castro and his brother, San Antonio Mayor Julian Castro, wave to the audience Tuesday.

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Julian Castro gives the keynote address Tuesday night. "Mitt Romney, quite simply, doesn't get it," he declared.

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Massachusetts Gov. Deval Patrick speaks during day one of the Democratic National Convention at Time Warner Cable Arena on Tuesday.

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Lilly Ledbetter, whose fight for equal pay resulted in the Fair Pay Act, takes the stage on Tuesday.

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First lady Michelle Obama's brother, Craig Robinson, and President Barack Obama's half-sister, Dr. Maya Kassandra Soetoro-Ng, speak on Tuesday.

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People hold signs Tuesday that read "Forward" and "Not Back."

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Actor-producer Kal Penn speaks on Tuesday.

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People listen to Chicago Mayor Rahm Emanuel on Tuesday.

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Rahm Emanuel, who served as President Barack Obama's first chief of staff, addresses the crowd Tuesday.

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Secretary of Health and Human Services Kathleen Sebelius walks onstage Tuesday.

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Former Ohio Gov. Ted Strickland takes the podium on Tuesday.

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Robert Rios from the Virgin Islands waves a state flag on Tuesday.

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Stacey Lihn of Arizona speaks on Tuesday as her husband, Caleb, holds her crying daughter, Emmy, and other daughter, Zoe Madison.

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A detail of the prosthetic legs of Tammy Duckworth, an Iraq war veteran who is running for the U.S. House from Illinois, is shown at the podium on Tuesday.

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