Story highlights Testifying Wednesday: Director of National Intelligence Dan Coats, a former senator

Also testifying: Acting Director FBI Director Andrew McCabe, Deputy AG Rod Rosenstein

(CNN) Two US intelligence agency chiefs refused to say on the record Wednesday whether President Donald Trump asked them to downplay investigations into whether there was collusion between Russia and Trump's presidential campaign last year.

When asked by Republican Sen. Marco Rubio of Florida during a Senate intelligence committee hearing, "Are prepared to say you have never been asked?" Director of National Intelligence Dan Coats and National Security Agency Director Adm. Mike Rogers declined to answer.

"I am not prepared to go down that road right now," Coats said. Rogers referred to earlier statements he made saying he wouldn't comment on conversations with the President.

Both men said they have never felt pressured from Trump's administration to intervene in investigations into Russian meddling into the US election, contradicting reports that the President had previously asked them to downplay the probe.

"I have never felt pressured to intervene in the Russia investigation in any way," Coats told members of the Senate intelligence committee when asked about such reports.