Ryan praised Mike Pence's performance, saying it "really shows a clear difference."
The next presidential debate is Sunday night.
"Even though he's bigger physically," Reid said.
Rep. Scott Garrett chairs a powerful panel overseeing Wall Street.
Graham says that while Trump is improving, it's not enough.
Republicans quietly moved to change the rules in 2015.
The Iran Sanctions Act expires at the end of the year.
Sen. Mike Lee said a military escalation in Syria would require congressional approval.