Republican presidential candidate Marco Rubio vowed on Sunday to keep repeating rehearsed lines after he was criticized for robotically attacking President Barack Obama.

During Saturday night's Republican Presidential Debate on ABC, Gov. Chris Christie had accused Rubio of repeatedly saying that Obama "knows exactly what he’s doing,”

"There it is," Christie interrupted at one point. "There it is -- the memorized 25-second speech. There it is, everybody."

On Sunday, Rubio told ABC News host George Stephanopoulos that he would continue using the rehearsed lines.

"I would pay them to keep running that clip," Rubio insisted. "Because that's what I believe passionately. It's one of the reasons that I'm not running for re-election in the Senate. I'm running for president."

"But you're getting pounded for repeating that speech," Stephanopoulos pointed out.

"I hope they keep running it," Rubio replied. "And I'm going to keep saying it because it's true."

"It's what I believe and it's what I'm going to continue to say," the candidate added. "Because it's one of the main reasons why I am running."