Story highlights Sen. Chris Murphy Americans should be worried about Trump, not Clinton, revealing classified information

Speaker Paul Ryan asserted earlier Wednesday that Clinton should not receive national security briefings

Washington (CNN) Sen. Chris Murphy said Wednesday it was Donald Trump -- not Hillary Clinton -- who Americans should worry will divulge classified information.

Following House Republicans' calls to bar Clinton from receiving classified information , Murphy defended the former secretary of state and cast doubt on Trump's ability to keep state secrets during an interview with CNN's Wolf Blitzer.

"I've frankly raised questions as to whether he can hold onto this classified information or whether he's going to stand up in front of one of these rallies and blurt out something that could put this country at risk," Murphy told Blitzer on "The Situation Room."

Earlier Wednesday, House Speaker Paul Ryan called for Clinton to be barred from receiving briefings on national security issues usually provided to major party presumptive nominees by the director of national intelligence.

Read More