A day after Donald Trump roiled the waters of the Republican race for President by saying he would bar Muslims from entering the United States in order to tighten security against terrorists, many Republicans in the Congress publicly criticized Trump, with some even saying it's time for the real estate magnate to drop his bid for the White House.

"This is not conservatism," said Speaker Paul Ryan, who addressed reporters after taking Trump to task in a closed door meeting of House Republicans.

"What was proposed yesterday is not what this party stands for, and more importantly, it's not what this country stands for," Ryan said of Trump.

Trump was also rebuked by a number of rank-and-file GOP lawmakers, who said Trump had gone too far.

"Donald Trump's comments are reprehensible, it shows he clearly does not understand our laws or our Constitution," said Rep. Mike Turner (R-OH).

"It's not only unconstitutional, it's un-American," said Rep. Mike Doyle (R-PA) of Trump's plan, as others urged Trump to leave the political arena.

"It is time that my side of the aisle has one less candidate in the race for the White House," said Rep. David Jolly (R-FL) on the floor of the House.

"It is time for Donald Trump to withdraw from the race," added Jolly, who is running for U.S. Senate in Florida.