The meeting comes after the former president said the Democratic Representative for Texas reminded him of himself.
Former President Barack Obama said O'Rourke ran an "impressive" campaign against Senator Ted Cruz.
"People in Texas were mesmerized and moved by him," the strategist pointed out. "The fact that he lost by 3 percent is impressive."
"The Democrats don't have anybody like him. I've seen all of them. They don't have anyone of his caliber on the national stage," Jeff Roe said.
Cruz led O'Rourke in the polls, but Republicans are nervous because O'Rourke put up a historic fight.
Critics question timing of exercise taking place in Democratic candidate Beto O'Rourke's hometown.
Ted Cruz's claim was based on a heavily edited video from Project Veritas.
In an analysis of early voting numbers, Target Smart found that more than 200,000 people have already voted for the first time in Texas, and the number of Hispanic voters has increased by more than 200 percent since 2014.
King has been isolated due his support of white nationalists.
A Quinnipiac University Poll found that Cruz was leading O'Rourke by five points, with 3 percent of Texan voters still undecided.
"It is time to take bold steps forward," The Dallas Morning News editorial board wrote.
Trump's campaign said 100,000 people requested tickets for Monday's rally for Senator Ted Cruz.
Donald Trump has changed his tune on Republican Senator Ted Cruz since the 2016 election.
"That wasn't the best phrase for me to use," said O'Rourke in an interview with ABC News that aired Sunday. "I'm going to do my best to stay focused on the future."
The panel said Ted Cruz had been forced to "bend the knee" and submit to President Trump as they put past insults behind them before tonight's Houston rally.
"I don't know that it makes any sense to respond," Beto O'Rourke said.
"You think that putting a sexual assaulter on the court is a victory for women?" a protester asked Texas Republican Senator Ted Cruz over his vote to confirm Brett Kavanaugh to the Supreme Court.
A former Trump campaign data strategist claimed Texas Democratic Senate candidate Beto O'Rourke is liked by journalists because he's a "beta male" with "metrosexual" tendencies.
"There is a loss of civility, there is an anger, there is a rage on the far left that is frightening," the senator said. "The images of the left-wing mob beating on the doors of the Supreme Court—that's not good for the country."
"Senator Cruz is not going to be honest with you... He's dishonest. It's why the president called him 'Lyin' Ted,' and it's why the nickname stuck. Because it's true," O'Rourke said during the second Texas senatorial debate.
Beto O'Rourke announced a staggering fundraising total, but continues to trail Ted Cruz in the polls.