Here are all the best moments from the big GOP debate

Screen Shot 2016 03 10 at 8.56.03 PM
Screen Shot 2016 03 10 at 8.56.03 PM

(Screenshot/CNN)

The clock is ticking for Donald Trump's primary rivals' attempt to slow him down as the Republican Party held its 12th debate on Thursday in Miami.

Trump, the GOP presidential frontrunner, said that he's going for the "knockout punch" by winning Florida and Ohio, the two biggest winner-take-all states in terms of delegates. Both states vote next week.

Florida, the home state of Sen. Marco Rubio, is the largest winner-take-all state of the season. It awards 99 delegates to its victor. Rubio trails Trump there by roughly 15 points, according to the RealClearPolitics average of several polls.

The prospects seem a bit better for Ohio Gov. John Kasich in his home state. A recent Fox News poll had Kasich leading Trump by five points, and he trails Trump in the RealClearPolitics average by just 2.5%. The Buckeye State, with 66 delegates, is the second-largest winner-take-all primary for the GOP.

In terms of delegates, Rubio and Kasich are far behind Trump and the fourth candidate, Sen. Ted Cruz of Texas, who has won several primary contests against Trump. But Trump nevertheless holds a nearly 100-delegate lead over Cruz.

Thursday's CNN debate was likely the candidates' final opportunity to make an impression on many voters in the key states voting next Tuesday. The debate was moderated by CNN's Jake Tapper. It began at 9 p.m. and was being held at the University of Miami in Miami, Florida.

Check out the highlights below:

10:59 p.m. EST: "What an incredible nation we have that the son of a bartender, and the son of a mailman, and the son of a dishwasher, and a successful businessman can all stand on this stage competing, and asking for your support," Cruz said in his closing statement.

10:43 p.m. EST: "Donald, you are welcome to be president of the Smithsonian," Cruz said to Trump during a short dust-up.

donald trump ted cruz debate
donald trump ted cruz debate

(Joe Raedle/Getty Images)
Donald Trump shakes Ted Cruz's hand at the CNN debate.

10:40 p.m. EST: “He served the nation great by pardoning Richard Nixon," Kasich said about former President Gerald Ford in a long answer about why he is still seeking the presidency in spite of mathematical odds that show it's highly unlikely he'd be able to hit the needed number of delegates.

Kasich said the GOP united behind Ford after a 1976 convention that featured both Ford and former President Ronald Reagan as potential nominees.

10:33 p.m. EST: "They have anger that's unbelievable," Trump said when asked about the protester who allegedly sucker punched a protester at a Wednesday rally of his.

"I certainly don't condone that at all Jake," he said, adding, "We have some protesters who are bad dudes. They have done bad things. They are swinging. They are really dangerous."