Harvard law professor emeritus Alan Dershowitz compared special counsel Robert Mueller’s lack of conclusion on whether President Trump obstructed justice to former FBI Director James Comey’s handling of the investigation into Hillary Clinton’s use of an unauthorized, private email server.

“Shame on Mueller for not having the guts to come to a decision one way or the other,” Dershowitz told Fox News on Sunday hours after Attorney General William Barr sent a four-page letter to Congress with an analysis of Mueller’s final report.