Donald TrumpDonald TrumpTrump will have the power to help underbanked Americans Overnight Regulation: Workers' groups blast Trump's expected Labor nominee WATCH LIVE: Trump speaks at 'thank you' rally in Iowa MORE asked the crowd at his Saturday rally in Orlando, Fla., to raise their rights hands and swear to vote for him in the presidential primary. 

“Don’t forget you all raised your hand. You swore. Bad things happen if you don’t live up to what you just did,” the party front-runner said. 

Recent polls have shown Trump dominating rival Marco RubioMarco Rubio House passes water bill with Flint aid, drought relief What the 2016 election can tell us about 2018 midterms Fight over water bill heats up in Senate MORE in his home state. 

Voters head to the polls in Florida on March 15.