It appears Turley's opinion is founded on a catch-22.
"Offering an exhaustive and colorful account of the history of impeachment, Mr. Turley agreed with the other panelists that “a quid pro quo to force the investigation of a political rival in exchange for military aid can be impeachable, if proven.”
But for that to be the case, he said, the evidence has to be stronger. Witnesses like Mick Mulvaney, the acting White House chief of staff, and John R. Bolton, the former national security adviser, must be heard from — not just spoken about by other witnesses. He argued the current case is destined for “collapse in a Senate trial.”
Impeachment Hearing Live Updates: Trump’s Actions Are Impeachable, Scholars Testify
So...........he thinks Trump shouldn't be impeached because some witnesses have not testified even as Trump is obstructing the investigation by blocking witness testimony.
And this is the guy the Repubs wanted????????????