Donald TrumpDonald TrumpDOJ asks Supreme Court to revive Boston Marathon bomber death sentence, in break with Biden vow Biden looking to build momentum for Putin meeting DOJ tells media execs that reporters were not targets of investigations MORE said Thursday he hopes Libertarian presidential nominee Gary JohnsonGary Earl JohnsonNew Mexico lawmakers send recreational marijuana bills to governor Judge throws out murder convictions, releases men jailed for 24 years On The Trail: Making sense of Super Poll Sunday MORE and Green Party nominee Jill Stein stay out of the presidential debates.

“No,” he told host Larry King late Thursday during an interview on RT America’s “Politicking." "I’d rather it be Hillary and myself. We’re the only two with a chance at winning."

“They seem to be going down, the other two,” Trump added of the third-party contenders. "They seem to be going down a little bit. We’ll see what happens.”

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But Trump said Johnson's widely criticized gaffe about the Syrian civil war isn't costing him too much. When Johnson was asked Thursday on MSNBC's "Morning Joe" what he would do about Aleppo, the besieged Syrian city, he responded: "And what is Aleppo?"

“Well, I don’t know that it will hurt him that much, frankly," Trump said. “It may be it hurt him a little bit, but I think he’ll scoot by.”

Both Johnson and Stein have argued they present frustrated voters a credible alternative to Hillary ClintonHillary Diane Rodham ClintonNSA leaker Reality Winner released from federal prison Monica Lewinsky signs production deal with 20th TV Police investigating death of TV anchor who uncovered Clinton tarmac meeting as suicide MORE and Trump.

Trump, the GOP’s presidential nominee, scores about a 58 percent unfavorable rating in the latest RealClearPolitics average of polls.

Clinton, his Democratic counterpart, earns about a 54 percent unfavorable rating in the same national index.

The Commission on Presidential Debates requires third-party presidential tickets to reach 15 percent in an average of five polls it has selected to make it onto the stage.

Johnson’s ticket has polled around 9 percent in recent surveys, while Stein’s campaign hovers around 3 percent.

The first presidential debate is Sept. 26 at Hofstra University in Hempstead, N.Y. 

A Morning Consult survey out last week found most voters want to see both Johnson and Stein in the debates.

Fifty-two percent said they would like Johnson in the first contest, while 47 percent desire Stein’s participation as well.