Fox News Chief White House correspondent John Roberts asked whether President Donald Trump intended to send a message to his critics today by meeting with former Secretary of State Henry Kissinger.

Questioning Deputy Press Secretary Sarah Huckabee Sanders, Roberts noted that critics of the firing of FBI Director James Comey have labeled the move "Nixonian" and compared it to Watergate. 

Kissinger served as the nation's top diplomat under Presidents Nixon and Ford.

Trump also met with Russia's foreign minister and U.S. ambassador as Democrats accuse him of firing Comey due to the ongoing FBI investigation into possible collusion between the Trump campaign and Russia. 

"The timing of all of this. Is it just ironic or is this the president poking a finger in his critics' eye?" Roberts asked.

Huckabee Sanders said the meetings were "on the books for a while" and are not part of any "strategy."

She accused the Democrats of attempting to "politicize" the routine meetings. 

"He should be meeting with the foreign minister. He should be meeting with people like Kissinger. And for them to try to attack him for doing his job? Maybe they should spend a little more time doing their jobs and we wouldn't have all the problems that we do," she countered. 

Watch the exchange above.

WATCH: CNN's Cooper Rolls Eyes at Conway During Interview on Comey

Paul: Dems Pushing a 'Huge Myth' About Trump Collusion With Russia

Mainstream Media Accuses Trump of Abuse of Power, Fascism for Comey Firing