This week's edition of The 45th newsletter

Personal spats between President Donald Trump, Republican leaders and administration staff have dominated US media coverage over the past week. Senator Bob Corker, the Republican chairman of the Senate Foreign Relations Committee, told the New York Times Sunday that Trump was treating his office like “a reality show”, with reckless threats toward other countries that could set the nation “on the path to World War III”.

On Sunday, Trump had alleged on Twitter that the retiring Mr Corker had decided not to run for re-election because he “didn’t have the guts”. Corker shot back in his own tweet: “It’s a shame the White House has become an adult day care center. Someone obviously missed their shift this morning.”

Their dispute followed an NBC story last Tuesday claiming Vice President Mike Pence had to talk Secretary of State Rex Tillerson out of resigning during the US summer, and that Tillerson had called Trump a “moron”. Overnight, Trump challenged his secretary of state to “compare IQ tests” if he had indeed called him a moron as reported.

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