Matt Rourke / AP
Election worker Khalid Battle reads a book as he waits for voters to cast their ballots in Pennsylvania primary election at Memorial Gospel Crusades Church, Tuesday, April 24, in Philadelphia.
Mark Lennihan / AP
Brendan Reilly, right, completes an election affidavit prior to casting his ballot at a polling station in the lobby of his apartment building on Wall Street in New York, Tuesday, April 24. Voters in New York, Connecticut, Delaware, Rhode Island and Pennsylvania are voting in the presidential primaries Tuesday. Reilly, who voted for Ron Paul, is hoping for a brokered Republican convention to block Mitt Romney's nomination.