Richard Grenell — the U.S. Ambassador to Germany who President Trump has praised as a “superstar” in helping him “break the deep state” during his recently ended three-month run as acting Director of National Intelligence — is engaged in a contentious social media feud with Politico over a report about him supposedly planning to join the Trump campaign that Grenell has slammed as utterly “false.”
“Grenell to join Trump campaign,” Politico announced Tuesday. The report begins:

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