Marco RubioMarco RubioLatino Republicans split on Trump's outreach Illegal immigration foe: Trump shift the 'death knell of his candidacy' Analysis: Clinton speaks at higher grade level than Trump MORE’s presidential campaign on Monday picked up another endorsement from a Senate colleague.
“Marco lived the American Dream, and he will ensure that each and every one of us can do the same," he added.
Tillis said he is supporting Rubio because the Florida senator “has an unmatched ability to inspire and uplift the American people."
“Through his vision of optimism and his strength of principle, Marco Rubio represents a bright future for the Republican Party and America,” Tillis added. “He has the unique capability of drawing new people into the party, which is critically important in a swing state like North Carolina."
Tillis was a key pickup for Republicans in the Senate following his election in 2014, and North Carolina, which holds its voting in the GOP primary March 15, is a big swing state.
Tillis’s endorsement follows Rubio’s second-place finish on Saturday in the South Carolina primary.
Rubio is rolling out the support of a slew of establishment backers after former Florida Gov. Jeb Bush exited the GOP race following the South Carolina primary on Saturday.
Rubio added the endorsement of Sen. Dean HellerDean HellerMcAuliffe: I wouldn't want a 'caretaker' in Kaine's Senate seat Senators offer bill removing hurdles to offering stock options Six senators call on housing regulator to let Congress finish housing finance reform MORE (R-Nev.) on Sunday, just days before the Nevada caucuses.
Rubio is battling Sen. Ted CruzTed CruzThe Trail 2016: On the fringe FULL SPEECH: Hillary Clinton links Trump to 'alt-right' in Reno Presidential hopefuls still bank on retail politics MORE (Texas) heading into the Nevada caucus on Tuesday, where Donald TrumpDonald TrumpA brief history of Paul LePage making people angry Army training slide branded Clinton as ’insider threat’: report 'Never Trump' group launching swing-state ads MORE maintained a big lead in polls released earlier this month.
--This report was updated at 8:11 a.m.