Michele Kelemen

As Secretary of State Rex Tillerson tries to heal a deep rift among Arab partners, President Trump seems to be upping the ante. Trump says he consulted with Saudi Arabia and others on a recent trip to Riyadh and decided to call out Qatar for its "very high level" of terror financing.

President Trump's Twitter account may be popular among his fans at home, but his latest missives are complicating the work of American diplomats overseas. As some diplomats push back, State Department spokeswoman Heather Nauert cautions that they "are expected to use their judgment."

Consider Trump's personal attack on London's mayor, Sadiq Khan, after Saturday night's deadly terrorist attack in the British capital.

President Trump took to Twitter on Monday to complain about Democratic "OBSTRUCTIONISTS," blaming the Senate for being slow to approve his nominees, including his ambassadors.

A spokesman for the ranking Democrat on the Senate Foreign Relations Committee threw it right back, saying Trump should be spending less time on Twitter and more time actually filling those positions.

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