Republicans Condemn Donald Trump's Proposal to Ban Muslims From Entering U.S.

Republican presidential candidate Donald Trump greets supporters after a campaign stop in Spencer, Iowa December 5. Mark Kauzlarich/Reuters

Many of Donald Trump's fellow Republicans were quick to come out against the GOP presidential candidate's proposal Monday to ban all Muslims from entering the United States.

"Until we are able to determine and understand this problem and the dangerous threat it poses, our country cannot be the victims of horrendous attacks by people that believe only in Jihad, and have no sense of reason of respect for human life," Trump said in a statement released Monday afternoon, citing a poll about Muslim Americans' belief in Shariah law conducted by the Center for Security Policy, a right wing, Tea Party-linked organization.

Banning a group from entering the United States on religious grounds is unconstitutional and, therefore, Trump's proposal would never hold up in court.

Immediately after Trump's statement was made public, GOP leaders and other Republican presidential candidates condemned the idea:

.@SunlenSerfaty just asked @tedcruz to respond to Trump's ban on Muslims. Here's what he said.

— Elizabeth Landers (@ElizLanders) December 7, 2015

Donald Trump is unhinged. His "policy" proposals are not serious.

— Jeb Bush (@JebBush) December 7, 2015

He’s putting at risk the lives of interpreters, American supporters, diplomats, & the troops in the region by making these bigoted comments

— Lindsey Graham (@LindseyGrahamSC) December 7, 2015

Ben Carson's campaign responds to Donald Trump saying he wants to stop all Muslims from entering the US:

— Pamela Engel (@PamEngel12) December 7, 2015

Full remarks from @MedvedSHOW on @realDonaldTrump statement.

— Chris Christie (@ChrisChristie) December 7, 2015

We said it 2 weeks ago & we'll say it again, @realDonaldTrump’s rhetoric is dangerous and bad for America. -Staff

— John Kasich (@JohnKasich) December 7, 2015

The GOP presidential candidates Carly Fiorina, Marco Rubio and Mike Huckabee did not immediately comment. Democratic frontrunner Hillary Clinton also did not immediately comment, but Democratic candidates Bernie Sanders and Martin O'Malley offered harsh criticisms of Trump's plan.

Rand Paul did not condemn Trump, but instead offered his own proposal:

Rand Paul spox does not criticize Trump, instead touts Paul's work to block visitors and immigrants from countries with 'radical' factions.

— Sabrina Siddiqui (@SabrinaSiddiqui) December 7, 2015

Muslim American groups and leaders were also quick to condemn Trump. The Council on American Islamic Relations is scheduled to host a press conference later Thursday during which it will condem the statements made by the Republican frontrunner.