The Republican establishment may not be falling in love with Donald Trump — but they seem to be falling in line.

Sen. Pat Toomey (R-Pa.) denounced sanctuary cities that shield illegal immigrants from deportation — a signature issue from the early days of Trump’s campaign — in the GOP’s weekly Saturday-morning address.

Republicans in Congress are steaming after Harry Reid and the Senate Democrats blocked a bill Wednesday that would force sanctuary cities — including New York — to cooperate with the federal government on deportations of illegal immigrants who commit crimes.

“With 11 million illegal immigrants in our country, there will be some who are violent criminals. It makes no sense to give those violent criminals any safe haven,” Toomey said.