U.S. Secretary of State John Kerry is accompanied by his dog Ben as he speaks to State Department workers on "Take Your Kids to Work Day" on Thursday, April 28.
An egg is thrown at a cardboard cutout of Republican presidential candidate Donald Trump during a protest outside the Hyatt Regency Hotel on April 29. Trump was scheduled to speak at the California Republican Convention in Burlingame.
An election machine operator switches the party on an electronic voting machine in Philadelphia on Tuesday, April 26.
U.S. Sen. Bernie Sanders, who is seeking the Democratic Party's presidential nomination, speaks during a rally in Providence, Rhode Island, on Sunday, April 24.
Ohio Gov. John Kasich, a Republican presidential candidate, holds an infant during a visit to a Philadelphia diner on Monday, April 25.
President Barack Obama answers questions during a White House briefing for college journalists on Thursday, April 28.
U.S. Sen. Ted Cruz speaks at a presidential campaign rally in South Bend, Indiana, on Thursday, April 28.
House Speaker Paul Ryan poses with media members' children after a news conference on "Take Your Kids to Work Day" on Thursday, April 28.
A man wears a mask of U.S. Sen. Bernie Sanders while waiting in line for a campaign event in Huntington, West Virginia, on Tuesday, April 26.
Ohio Gov. John Kasich greets a voter during a presidential campaign event in Rockville, Maryland, on Monday, April 25.
Hillary Clinton supporters cheer during a primary night gathering in Philadelphia on Tuesday, April 26.