Democratic presidential candidate Hillary Clinton speaks at the Apollo Theater in New York during a campaign rally on Wednesday, March 30.
U.S. Sen. Ted Cruz, a Republican presidential candidate, laughs at a poster while speaking a town-hall event in Madison, Wisconsin, on Wednesday, March 30.
A man's belt resembles the U.S. coat of arms as he attends a Donald Trump campaign event in Appleton, Wisconsin, on Wednesday, March 30.
U.S. Sen. Bernie Sanders, who is seeking the Democratic Party's presidential nomination, speaks at a campaign event in New York on Thursday, March 31.
Supporters of U.S. Sen. Bernie Sanders cheer for the presidential candidate as he speaks in Appleton, Wisconsin, on Tuesday, March 29.
U.S. Vice President Joe Biden, left, laughs as Secretary of State John Kerry introduces him Tuesday, March 29, at the International Women of Courage Forum in Washington.
A boy peeks over a barricade in Green Bay, Wisconsin, as he waits to listen to Democratic presidential candidate Hillary Clinton on Tuesday, March 29.
Republican presidential candidate John Kasich greets supporters before a town-hall meeting at a Catholic church in New York on Wednesday, March 30.