Trump lashes out at twice-elected Corker in angry tweets: 'Couldn't get elected dog catcher'

President Donald Trump responded to Sen. Bob Corker's latest round of criticism with another round of insults.

Corker, who is retiring after his second U.S. Senate term ends next year, stood by his criticism of the president's maturity and launched new criticism of Trump's foreign policy.

“When you look at the fact that we've got this issue in North Korea and the president continues to kneecap his diplomatic representative, the secretary of state, and really move him away from successful diplomatic negotiations with China, which is key to this, you're taking us on a path to combat,” Corker told ABC's "Good Morning America." "The president undermines our secretary of state [and] raises tensions in the area by virtue of the tweets that he sends out."

The president, for his part, responded about an hour later by saying the twice-elected senator and former Chattanooga mayor "couldn't get elected dog catcher."

Corker replied via Twitter a short time later.

Trump fired back one more time.