Senate Democrats call on President Trump to press Putin about 2016 election

Senate Democrats want President Trump to address Russia's alleged meddling in the 2016 presidential election when he meets with Russian President Vladimir Putin on Friday.

In a letter sent to the president, they criticized the administration for saying that the president did not have a specific agenda for his meeting with Putin.

"While your meeting with Putin may have shifted to a more formal setting, it remains critical that you set the agenda from the start and make absolutely clear that Russian interference in our democracy will in no way be tolerated," the group, led by Senate Minority Leader Chuck Schumer of New York, wrote.

The group also included Sens. Dick Durbin of Illinois, Mark Warner of Virginia, Jack Reed of Rhode Island and Ben Cardin of Maryland.

The senators noted findings by the intelligence community that Russia had interfered with the election and said that it must be made clear that Russia and Putin cannot interfere in upcoming elections.

"It's critical that both the executive and legislative branches of our government use every tool at our disposal to ensure that Putin does not believe he has a freehand to implement his manipulative program of election interference ever again," they wrote.

Their letter was sent as Trump himself expressed skepticism about the intelligence community's findings on the 2016 president election.

"Nobody really knows for sure" what happened, he said.