Harvard Law professor Alan Dershowitz

Alan Dershowitz, famed Harvard lawyer and longtime dedicated liberal, already has concluded that House Speaker Nancy Pelosi sounds like Josef Stalin in her demands to see President Trump in prison.

And he’s on record believing FBI special counsel Robert Mueller was “going beyond his responsibility” in his political comments about his work on the Democrats’ effort to tarnish Trump by claiming his campaign coordinated with Russia.

And he’s said there should be contempt counts against fired FBI chief James Comey and others for their submissions to the nation’s FISA courts.

Now he explains the Democrats are simply trying to find something that doesn’t exist, in their ongoing attacks on the president.

“They’re looking to create something that isn’t there,” he said in at interview with the Washington Examiner’s Eddie Scarry on Monday.

“They’re trying to weaponize the criminal justice system for partisan advantage. It’s not…