Donald Trump addresses a rally in Ft. Worth, Texas, Friday February 26, 2016. Trump is expected to speak at about 1pET/10aPT.
Christie Christie, who endorsed Trump for president Friday, is expected to be on stage with him.
Christie said Trump is the best choice for the Republicans to nominate against Hillary Clinton.
"You need a strong, tough leader to restore America's greatness and this is the best person to do that," Christie said.
"This is the one endorsement that I wanted to get," Trump said at a news conference with Christie in Ft. Worth, Texas, Friday.
Christie, who dropped out of the GOP presidential race a day after a poor finish in the New Hampshire primary, said Trump is the best hope for keeping Clinton "10 miles from the White House."
Christie immediately attacked Marco Rubio suggesting he was "an amatuer act."