Democrats Barack Obama and Hillary Rodham Clinton split delegates in four states Tuesday while Republican John McCain claimed his party's nomination for president.
Clinton picked up at least 115 delegates in Ohio, Rhode Island, Vermont and Texas, while Obama picked up at least 88.
Obama still leads Clinton in the overall delegate count 1,477 to 1,391.
It takes 2,025 to secure the Democratic nomination.
McCain has 1,224 delegates. He needed 1,191 to sew up the GOP nomination.