President Donald Trump said Special Counsel Robert Mueller's ongoing probe has had a "negative impact" on U.S.-Russia relations.

Trump made the remark during a joint press conference with Russian President Vladimir Putin Monday following a historic bilateral meeting in Helsinki, Finland.

The pair met one-on-one earlier and shook hands in front of cameras as Trump predicted their two countries “will end up having an extraordinary relationship.”

Trump, however, also said that Mueller's investigation in Russian meddling in the 2016 U.S. election has "kept us apart."

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Reuters reporter Jeff Mason asked Trump if he holds Russia accountable for the election meddling. 

"There was no collusion at all. Everybody knows it," Trump said.

He added that he beat Hillary Clinton "easily" and it's a shame that there is a cloud over his election win.

"It's ridiculous what's going on with the probe," Trump said, adding the election meddling story was an "excuse" for the Democrats losing. 

Mason asked Putin whether he would allow 12 Russians to be extradited to the U.S. to face charges in their indictment Friday by Special Counsel Robert Mueller.

Putin called the collusion allegations "nonsense" and said there is "no evidence." 

Watch the clip above.

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