Marco Rubio supporters did not hide their disappointment Tuesday night after his loss in the primary and later withdrawing from the election.
Many at Rubio's Miami rally broke out in chants, telling Rubio to keep fighting for the Republican nomination.
The U.S. senator opened his Primary Watch Party speech by congratulating Donald Trump on his Florida win.
"I want to begin by congratulating Donald Trump on his victory, a big victory in Florida," said Rubio as the crowd starting to boo. "No, no, no, guys. We live in a republic and our voters make these decisions."
Rubio's supporters feared what was coming next.
"While it is not God’s plan that I be president in 2016 or maybe ever, while today my campaign is suspended, the fact that I’ve even come this far is evidence of how special America truly is," said Rubio.
The U.S. senator bowed out of the GOP race after losing his home state. He ended his campaign with only three wins, in Washington D.C., Puerto Rico and Minnesota. The supporters who cast their ballots for him Tuesday said they didn't feel their vote was a waste.
"I’m proud that my vote went toward someone who knows what it’s like to be an immigrant, to have the American dream. I don’t regret voting for Marco Rubio," said Veronica Bondarenko, a high school student and first time voter.
Despite the polls leading into Tuesday's elections indicating that Trump was in the lead, supporters say this result has left them unsure of who they will back in the GOP.
"It does make me doubt where we are going as a country and what the Republican party has diverted into," said Daniela Rojzman.
Some supporters say if Donald Trump wins the Republican nomination, they may not vote this year.
"I cannot live with myself, and I would not be able to sleep in peace," said Margie Nieves of Miami.
As for Rubio, his supporters say they will stand by him in any future race.
"He has led Florida in a very positive way. He’s done a wonderful campaign, and we feel very proud of what he’s done," said Cindy Sanchez.
What's next for the U.S. senator is still to be seen. Rubio has said before he believes in term limits and is not planning on running for his Senate seat again.
