Sen. Mark Warner, top Senate Intel Dem warns of 'red line' over calls to fire Mueller

"Those statements are reckless," Sen. Mark Warner said.

"Those statements are reckless. They are inappropriate. And they are extremely worrying. They are at odds with the president's own lawyers who have pledged to cooperate with the special counsel. Beyond being irresponsible, the seemingly coordinated nature of these claims should alarm us all," Warner said on the Senate floor.

On Friday, Rep. Matt Gaetz, R-Florida, called for Mueller to be fired and urged colleagues to join in his cause.

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