A “shadow secretary of State” for former President Donald Trump threatens to “upend American leadership of the free world” by throwing support to far-right leaders abroad in opposition to White House policy, according to a new report. The Washington Post Thursday published an extensive and damning profile of Trump’s former intelligence officer Richard Grenell and the connections he has since forged with election-deniers and authoritarian regimes abroad. “I think Trump andGrenell would upend American leadership of the free world,” Daniel Fried, who spent four decades in top State Department pos…