>> In a Sunday morning Tweet storm, President Donald Trump lashing out at retiring Republican Senator Bob Corker, a former ally who says Trump's top cabinet aids are keeping the US from falling into chaos. Bob Corker begged me to endorse him, Trump tweeted about the Tennessee senator, I said no and he dropped out.
In further Tweets, Trump says Corker also wanted to be a Secretary of State but Trump said, quote, no thanks. And then blames Corker for the, quote, horrendous nuclear deal with Iran. Corker quickly tweeting a rejoinder. It's a shame the White House has become an adult day care center.
Someone obviously missed their shift this morning. Last Wednesday, Corker spoke out in support of Secretary of State Rex Tillerson, another top administration figures, amid reports Tillerson had considered resigning over clashes with the president.>> I think Secretary Tillerson, Secretary Mattis, and Chief of Staff Kelly are those people that help separate our country from chaos.
>> In August, Corker said Trump had failed to show the, quote, stability or, quote, competence necessary to be successful. And his opposition to any tax reform initiative that increases the deficit has placed a major obstacle before one of Trump's top legislative priorities. Deputy US Politics Editor Caren Bohan is following the story.
>> A bad Corker is a bad enemy for the president to make on many levels. He's a pivotal vote in congress, and he could block some of the president's initiatives on tax and other things. If the Mueller probe turns up findings that don't show the president in a good light, Corker could be one of the Republican voices criticizing the president, and that could be problematic for him.
>> It wasn't always like this. Corker supported Trump in the 2016 election and was briefly in the running for vice president, seen as a possible bridge between Trump and the Republican establishment. Corker announced his retirement amid expectation he faced a primary challenger from the far-right wing of his party.