Voters line up in five states to cast ballots on Super Tuesday 2.0

A voter casts her ballot in the primary election Tuesday, March 15, 2016, at an American Legion Hall in Marengo, Ohio. (AP Photo/Matt Rourke)

Voters line up before daylight to cast their ballots at Cary Fire Station 9 in Cary, N.C., Tuesday, March 15, 2016. (AP Photo/Gerry Broome)

In a Saturday, March 13, 2016 photo, Marco Rubio supporter Jim Wilson, 74, from Buckingham, Va., talks about the GOP presidential contender's chances in winning Tuesday's Florida primary, during a rally in The Villages, Fla. Wilson has driven more than 30,000 miles to attend all 62 of Rubio's campaign events. (Joe Burbank/Orlando Sentinel via AP)

A sign directing voters is posted in front of the First Baptist Church in Weston, Mo., Tuesday, March 15, 2016. Missouri voters are making their presidential choices Tuesday in what could be a pivotal primary election day for some candidates looking to either solidify their front-runner status or build new momentum. (AP Photo/Orlin Wagner) (Copyright 2016 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistribu)

Voter William Savain places his voter sticker on his shirt after casting his absentee ballot at the Miami-Dade Election Department in Miami, Tuesday, March 15, 2016. (AP Photo/Alan Diaz) (Copyright 2016 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistribu)

Voters enter a polling location at the First Baptist Church in Weston, Mo., Tuesday, March 15, 2016. Voters in Missouri, as well as North Carolina, Illinois, Ohio and Florida are casting their ballots in primary elections Tuesday. (AP Photo/Orlin Wagner) (Copyright 2016 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistribu)

Students wait in line to vote at the Illini Union on the University of Illinois campus in Urbana, Ill., Tuesday March 15, 2016. Voters in Illinois, as well as North Carolina, Florida, Missouri and Ohio are casting their ballots in primary elections Tuesday. (Rick Danzl/The News-Gazette via AP) MANDATORY CREDIT (The News-Gazette, 2016)