The Iowa Caucus
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iowa caucus cnn coverage recap origwx js_00013022.jpg
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Five hours of CNN's Iowa caucus coverage in 3 minutes
Bernie Sanders speaks at the MSNBC Democratic Candidates Debate at the University of New Hampshire on February 4, 2016, in Durham, New Hampshire.
Bernie Sanders speaks at the MSNBC Democratic Candidates Debate at the University of New Hampshire on February 4, 2016, in Durham, New Hampshire.
Justin Sullivan/Getty
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Sanders on Iowa Caucuses: Winner doesn't take all
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The Democratic town hall in 90 seconds
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Donald Trump: Ted Cruz 'stole' Iowa caucuses
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Sanders, Clinton battling for Independents
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Iowa in 2012 and 2016: Two caucus cliffhangers
DES MOINES, IA - FEBRUARY 01: Republican presidential candidate Sen. Ted Cruz (R-TX) reaches out to supporters after winning at the caucus night gathering at the Iowa State Fairgrounds on February 1, 2016 in Des Moines, Iowa. Cruz beat out businessman Donald Trump and Sen. Marco Rubio (R-FL), who finished just behind Trump. (Photo by Christopher Furlong/Getty Images)
DES MOINES, IA - FEBRUARY 01: Republican presidential candidate Sen. Ted Cruz (R-TX) reaches out to supporters after winning at the caucus night gathering at the Iowa State Fairgrounds on February 1, 2016 in Des Moines, Iowa. Cruz beat out businessman Donald Trump and Sen. Marco Rubio (R-FL), who finished just behind Trump. (Photo by Christopher Furlong/Getty Images)
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Highlights from the Iowa night speeches
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hillary clinton iowa caucus sot_00005814.jpg
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Clinton: Campaign stands for what's best in America
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iowa caucuses bernie sanders speech sot_00003013.jpg
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Clinton: This campaign stands for what's best in America
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Ted Cruz: The people, not the media, pick the president
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Ted Cruz: Judeo-Christian values built America
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Donald Trump after Iowa loss: Congratulations Ted
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marco rubio speaks to supporters_00011420.jpg
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Marco Rubio speaks to his supporters in Iowa
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martin omalley suspend campaign sot_00002920.jpg
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Martin O'Malley suspends presidential campaign
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Donald Trump thanks Iowa, congratulates opponents
Republican presidential candidate, Sen. Ted Cruz, R-Texas, speaks at Green County Community Center, Monday, Feb. 1, 2016, in Jefferson, Iowa. (AP Photo/Chris Carlson)
Republican presidential candidate, Sen. Ted Cruz, R-Texas, speaks at Green County Community Center, Monday, Feb. 1, 2016, in Jefferson, Iowa. (AP Photo/Chris Carlson)
Chris Carlson/AP
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Iowa caucus result: Ted Cruz projected to win
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Rand Paul victory Liberty movement sot_00003925.jpg
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Rand Paul claims a victory for the Liberty Movement
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iowa caucuses hillary clinton bernie sanders entrance polls chalian ac_00001726.jpg
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Iowa caucuses: Why the Democratic race is so close
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Iowa Caucuses: Why the Democrat race is so close
JOHNSTON, IA - JANUARY 31: Democratic Presidential Candidate Martin O'Malley speaks to potential supporters at a residence on January 31, 2016 in Johnston, Iowa. O'Malley and other candidates are making their final appeals to voters ahead of the Iowa caucus February 1. (Photo by Steve Pope/Getty Images)
JOHNSTON, IA - JANUARY 31: Democratic Presidential Candidate Martin O'Malley speaks to potential supporters at a residence on January 31, 2016 in Johnston, Iowa. O'Malley and other candidates are making their final appeals to voters ahead of the Iowa caucus February 1. (Photo by Steve Pope/Getty Images)
Steve Pope/Getty Images
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Sources: Martin O'Malley to suspend campaign
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Iowa caucuses: Breaking down the numbers
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trump leading iowa entrance polls sot ac_00011008.jpg
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Iowa Caucus: Breaking down the numbers
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large voter turnout democrats iowa foreman sot ac_00004310.jpg
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Voter turnout higher than expected at Iowa caucus site
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how does a caucus work iowa 2016 origwx al_00005123.jpg
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Why do we care so much about the Iowa caucuses?
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huckabee santorum view art and reflect iowa caucus 2016 origwx allee_00004824.jpg
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Past Iowa winners struggle in new era
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Does the Iowa ground game matter in the age of Trump?
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Josh Hutcherson, Vampire Weekend party for Bernie
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What Clint Howard thinks of the 2016 race
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Meet the soothsayers of American politics
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iowa state profile craig robinson origwx js_00000926.jpg
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The five political regions of Iowa, explained
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Where the cool kids caucus
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Iowa's Evangelicals debate Trump vs. Cruz
US Republican presidential candidate Donald Trump (R) is greeted on stage by fellow Republican candidate Ted Cruz before speaking at a rally organized by the Tea Party Patriots against the Iran nuclear deal in front of the Capitol in Washington, DC, on September 9, 2015.
US Republican presidential candidate Donald Trump (R) is greeted on stage by fellow Republican candidate Ted Cruz before speaking at a rally organized by the Tea Party Patriots against the Iran nuclear deal in front of the Capitol in Washington, DC, on September 9, 2015.
NICHOLAS KAMM/AFP/Getty Images
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Cruz warns: If Trump wins Iowa he might be 'unstoppable'
Republican presidential candidate Sen. Marco Rubio (R-FL) speaks to guests at a town hall syle meeting on January 29, 2016 in Dubuque, Iowa.
Republican presidential candidate Sen. Marco Rubio (R-FL) speaks to guests at a town hall syle meeting on January 29, 2016 in Dubuque, Iowa.
Scott Olson/Getty Images
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Marco Rubio's Iowa strategy
Donald Trump (R) speaks as Rick Santorm (C) as Mike Huckabee (L) look on during a Trump campaign rally raising funds for US military veterans at Drake University in Des Moines, Iowa on January 28, 2016.
Donald Trump (R) speaks as Rick Santorm (C) as Mike Huckabee (L) look on during a Trump campaign rally raising funds for US military veterans at Drake University in Des Moines, Iowa on January 28, 2016.
WILLIAM EDWARDS/AFP/Getty Images
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Inside Trump's one of a kind debate counter-programming
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The Democratic town hall in under two minutes
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The Iowa Democratic town hall in under two minutes
Jeremy Moorhead / CNN
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Here's what Trump supporters had to say about Cruz
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Trump's Iowa turnout target
US Republican presidential candidate Donald Trump (R) is greeted on stage by fellow Republican candidate Ted Cruz before speaking at a rally organized by the Tea Party Patriots against the Iran nuclear deal in front of the Capitol in Washington, DC, on September 9, 2015.
US Republican presidential candidate Donald Trump (R) is greeted on stage by fellow Republican candidate Ted Cruz before speaking at a rally organized by the Tea Party Patriots against the Iran nuclear deal in front of the Capitol in Washington, DC, on September 9, 2015.
NICHOLAS KAMM/AFP/Getty Images
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Trump, Cruz go to war with one week until Iowa
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Iowa: Why it's a big deal, and why it's not
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See the T-shirts that are edgy...for Iowa
Singer Katy Perry rallies supporters of Democratic presidential candidate Hillary Clinton outside the Iowa Events Center before the start of the Jefferson-Jackson dinner on October 24, 2015 in Des Moines, Iowa.
Singer Katy Perry rallies supporters of Democratic presidential candidate Hillary Clinton outside the Iowa Events Center before the start of the Jefferson-Jackson dinner on October 24, 2015 in Des Moines, Iowa.
Scott Olson/Getty Images
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Clinton, Sanders and Katy Perry converge in Iowa
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How to not embarrass yourself at the Iowa state fair