CLARKSVILLE, Tenn. (CLARKSVILLENOW) – President Donald Trump tweeted on Friday regarding recent remarks made by Tennessee Senator Bob Corker that questioned his competence in the White House.

Last week Corker questioned President Trump’s stability and competence in situations like the Charlottesville tragedy.

The senator also said Trump “recently has not demonstrated that he understands the character of this nation.” During comments to local reporters after a speech to the Chattanooga Rotary Club, Corker called for “radical changes” in how the Trump White House operates.

“I have not talked to the president this week,” Corker said to WKRN News 2 on Thursday. “I have talked with Chief of Staff Kelly and Secretary of State Tillerson.”

Corker declined to answer questions about whether he will run again.