And then there were three. Marco Rubio announced on Tuesday, March 15, that he was suspending his presidential campaign after Donald Trump won Rubio's home state of Florida.
In his concession speech, 44-year-old Rubio, who came in second place, but well behind Trump in the primary on Tuesday, told supporters that he had "endeavored over the last 11 months to bridge this divide in our party. While we are on the right side this year, we will not be on the winning side."
With Rubio out, that leaves three Republicans running for president: front-runner Trump, followed by Ted Cruz and John Kasich.
CNN projected that Kasich, 63, would win his home state of Ohio, while Trump was predicted to come out on top in North Carolina, with numbers still being counted in Illinois and Missouri. The 69-year-old real estate mogul also won the Northern Mariana Islands' caucus.
On the Democratic side, Hillary Clinton beat out Senator Bernie Sanders in Florida. The former secretary of State was also projected to win North Carolina and Ohio, with results still pending in Illinois and Missouri.
For access to all our exclusive celebrity videos and interviews – Subscribe on YouTube!