Despite Donald Trump's string of victories on Tuesday, he has to do better in upcoming contests to claim the Republican nomination for president before the party's national convention this summer.
Ted Cruz is emerging as the candidate who could stop him — with a little help from Marco Rubio.
It was a hard-fought battle for Hillary Clinton in Massachusetts, but the Democratic frontrunner eeked out a win over challenger Bernie Sanders, 50 percent to 49, as Republican Donald Trump cruised to victory, with 49 percent of the vote on the Republican side.
With 91 Democratic delegates at stake in Massachusetts, Clinton and Sanders are on track to split the spoils fairly evenly. Clinton will pick up at least 45; Sanders will gain 43. There are still about 3 percent of precincts yet to report. Clinton won in larger Massachusetts cities and towns, while Sanders fared better in rural areas in central and Western Massachusetts.
