From csmonitor:

With the Trump impeachment inquiry, that’s become even more obvious as the proceedings have moved from the relatively controlled environment of the House Intelligence Committee to the slam-bang roller derby of the Judiciary, a committee populated by “ready-to-rumble folks,” says Casey Burgat, a resident senior fellow in the Governance Project at the R Street Institute.

“They’ve become more party-line supportive than they were 100 years ago,” says Dr. Burgat.