http://www.cnn.com/2017/10/08/politics/donald-trump-bob-corker-tweets/index.html

Washington (CNN)President Donald Trump attacked Sen. Bob Corker in a series of tweets Sunday, days after the Tennessee Republican made public comments criticizing him.

"Senator Bob Corker 'begged' me to endorse him for re-election in Tennessee. I said 'NO' and he dropped out (said he could not win without..." Trump wrote in a series of three consecutive tweets. "..my endorsement). He also wanted to be Secretary of State, I said "NO THANKS." He is also largely responsible for the horrendous Iran Deal!"
"...Hence, I would fully expect Corker to be a negative voice and stand in the way of our great agenda. Didn't have the guts to run!" Trump added.

Corker responded by tweeting an insult to Trump later Sunday morning.
"It's a shame the White House has become an adult day care center. Someone obviously missed their shift this morning," Corker wrote.

Former US attorney Preet Bharara, now a senior legal analyst at CNN, retweeted Corker's response, remarking, "An adult day care center whose chief resident can't count to 51."

Bharara was fired by Trump a few months into his presidency.
Corker, the chairman of the Senate foreign relations committee, announced late last month he would not seek another term in the Senate and has made some critical comments about Trump's demeanor and temperament.