Five states, including Maryland and Pennsylvania, are holding their presidential primary elections today.
Election Pennsylvania
Voter Joe Cieslo fills out an exit poll for the AP, CNN, Fox, NBC, CBS, ABC after voting at the Westmont art center in Johnstown, Pa., Tuesday, April 26, 2016. (Todd Berkey/The Tribune-Democrat via AP) MANDATORY CREDIT
Election-Pennsylvania
People line up in the polling place for Ward 9, Division 12, located in the gym of The Lutheran Theological Seminary for the Pennsylvania primary in Philadelphia on Tuesday, April 26, 2016. (Clem Murray/The Philadelphia Inquirer via AP) MANDATORY CREDIT
DEM 2016 Sanders
Attendees wait in line before the arrival of Democratic presidential candidate Sen. Bernie Sanders, I-Vt., ahead of an election night campaign event at the Big Sandy Superstore Arena, Tuesday, April 26, 2016, in Huntington, W.Va. (AP Photo/John Minchillo)
Election Pennsylvania
Katie McGinty, left, who is running for the Democratic nomination for U.S. Senate seat, laughs with Ronald Armour, right, who was standing outside the Relish Diner and using his bullhorn to tell passers-by to vote in the Primary, Tuesday, April 26, 2016, in Philadelphia. (Michael Bryant/The Philadelphia Inquirer via AP) PHIX OUT; TV OUT; MAGS OUT; NEWARK OUT; MANDATORY CREDIT
Election Pennsylvania
Poll worker Ray Black hands out stickers to voters at Hanover's Ward 3 polling station, Tuesday, April 26, 2016 at the Utz Pavillion in Hanover, Pa. Pennsylvania voters went to the polls Tuesday with strong views about who should be president. Voters will also decide hotly contested Democratic primary races for U.S. Senate and state attorney general. (Shane Dunlap/The Evening Sun via AP) MANDATORY CREDIT
John Kasich
Republican presidential candidate, Ohio Gov. John Kasich, speaks during a town hall at Thomas farms Community Center on Monday, April 25, 2016, in Rockville, Md. (AP Photo/Evan Vucci)
Ted Cruz, John Kasich
FILE - In this March 10, 2016, file photo, Republican presidential candidate, Sen. Ted Cruz, R-Texas, left, shakes hands with Republican presidential candidate, Ohio Gov. John Kasich, at the start of a Republican presidential debate sponsored by CNN, Salem Media Group and the Washington Times at the University of Miami in Coral Gables, Fla. The political world is waiting to see if Cruz and Kasich’s alliance against Donald Trump proves brilliant or desperate. Some voters in the three states most affected are applauding the move and others are panning it. But many are struggling to understand what, if anything, it will mean for them.(AP Photo/Wilfredo Lee, File)
Donald Trump
Security stands nearby as Republican presidential candidate, Donald Trump, center back to camera, greets supporters after speaking at a campaign rally Monday, April 25, 2016, in Wilkes-Barre, Pa. (AP Photo/Mel Evans)
Hillary Clinton
Democratic presidential candidate Hillary Clinton inspects the MV-1 during her visit to an AM General plant, Tuesday, April 26, 2016, in Mishawaka, Ind. (AP Photo/Matt Rourke)
Pennsylvania Election
A voter walks into the precinct located in the HUB-Robeson Center on the Penn State University campus, in University Park, Pa. Tuesday, April 26, 2016 is primary election day in Centre County and the state of Pennsylvania. (Nabil K. Mark/Centre Daily Times via AP)
Pennsylvania primary
Trinidy Young, 4, carries a ballot for her mother, Kandace Young, Tuesday, April 26, 2016, at the polling station at Chambersburg, Pa., Area School District building. Pennsylvania voters were casting ballots during the primary election. (Markell DeLoatch/Public Opinion via AP)
Election Pennsylvania
Voters arrive at the small polling location called the Simpson Voting House in New Alexandria, Pa., to cast their ballot in the Pennsylvania primary election, Tuesday, April 26, 2016. Pennsylvania voters choose presidential candidates, pick a Democratic nominee for U.S. Senate and nominate a Republican and Democrat to run for attorney general. (AP Photo/Keith Srakocic)
Election Maryland
A woman casts her vote at a polling place inside Winfield Elementary School's gym in Windsor Mill, Md., Tuesday, April 26, 2016. Maryland voters have many choices and deeper impact than in recent elections as they make their choices about who should run for president and pick candidates for an open U.S. Senate seat. (AP Photo/Patrick Semansky)
Election Pennsylvania
Hanover borough Constable Royce Foltz II displays a voting sticker on his vest Tuesday, April 26, 2016 while working at the Utz Pavillion polling station in Hanover's 3rd ward in Hanover, Pa. Pennsylvania voters went to the polls Tuesday with strong views about who should be president. Voters will also decide hotly contested Democratic primary races for U.S. Senate and state attorney general. (Shane Dunlap/The Evening Sun via AP) MANDATORY CREDIT
Election Pennsylvania
Poll worker Ray Black hands out stickers to voters at Hanover's Ward 3 polling station, Tuesday, April 26, 2016 at the Utz Pavillion in Hanover, Pa. Pennsylvania voters went to the polls Tuesday with strong views about who should be president. Voters will also decide hotly contested Democratic primary races for U.S. Senate and state attorney general. (Shane Dunlap/The Evening Sun via AP) MANDATORY CREDIT
Also shows close race between Clinton and Trump.