Everything you need to know:
- Five Atlantic Coast states are voting today: Pennsylvania, Rhode Island, Connecticut, Maryland and Delaware
- Donald Trump has hit 50 percent in national Republican polls for the first time, according to NBC News/Survey Monkey
- Ted Cruz and John Kasich have joined forces in attempt to stop Trump from reaching 1,237 delegates to win the Republican nomination
- Trump is leading the polls in all five states
- Clinton leads Pennsylvania, Maryland and Delaware while Sanders leads in Rhode Island. Both Dems are tied in Connecticut