Maine Gov. LePage endorses Donald Trump for president


New Jersey Governor Chris Christie introduces Republican presidential candidate Donald J. Trump during a rally at the Fort Worth Convention Center in Fort Worth, Texas, Friday, Feb. 26, 2016.

For months, Rubio had avoided a direct assault on Trump, before unleashing on him with the help of fellow GOP contender Ted Cruz during Thursday night's debate.

While Christie's campaign never managed to build up much steam, polling in the single digits nationally, the endorsement could provide Trump with still more momentum going into Super Tuesday.

Apparently enjoying himself, Rubio then read a series of tweets from Trump following the debate, in which Trump misspelled several words while hurling insults at Rubio.

The Texas Republican, who won the Iowa caucuses, but came in third in both New Hampshire and SC, is banking on Super Tuesday and his home state of Texas to revive his fortunes. That I can tell you. The Florida senator aggressively went after Trump during Thursday night's debate and at a rally hours before the endorsement. "We are the only candidate that has beaten Donald Trump", Cruz said.

Making his announcement on Friday, Christie singled out Trump as the strongest candidate in the Republican race.

On Trump's plan to build a US-Mexico wall, Rubio added, "If he builds the wall the way he builds Trump Towers, he'll be using illegal immigrant labor to do it". "They elected him as a young senator and before he sits down, he starts running for president", Trump said.

Christie's endorsement of Trump is sure to inflame sentiment against him among movement conservatives.

Rubio is fresh off his most aggressive debate performance yet, in which he and U.S. Sen.