U.S. House Speaker Paul Ryan said Donald Trump’s proposal to ban Muslims from entering the United States is not in the “country’s interest.”

“I do not think it is reflective of our principles, not just as a party but as a country,” Ryan said Tuesday. “I think the smarter way to go, in all respects, is to have a security test and not a religious test.”

Ryan’s criticism of Trump’s proposal followed the shooting in Orlando, Florida on Sunday that killed 49 and injured more than 50. The Orlando shooter, Omar Mateen, was an American citizen, NPR reported.

Ryan also discussed the difference between peaceful Muslims and militant groups, according to The Wall Street Journal.

“There’s a really important distinction that every American needs to keep in mind: This is a war with radical Islam — it’s not a war with Islam. Muslims are our partners,” Ryan said. “They’re among our best allies, among our best resources in this fight against radical Islamic terrorism.”

Ryan has continued to emphasize that the country is fighting against terrorists, not against Muslims.

“Over the weekend, we saw the worst terror attack on our soil since 9/11,” Ryan said in a press briefing. “…We need to be clear about who did this. This was another act of war against America by radical Islam.”

This is a threat that knows no borders and cannot be contained. This is a threat that simply must be defeated. https://t.co/dUGWnEkRxr

— Paul Ryan (@SpeakerRyan) June 14, 2016

In a December 7 news release, Trump called for “a total and complete shutdown” of Muslims entering the United States, according to his website.

“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 or respect for human life,” Trump said in the release.

Trump posted several tweets about his proposed ban following the incident in Orlando. In one tweet, Trump reiterated his plan to temporarily ban those from “nations tied to Islamic terror” from entering the country.

In my speech on protecting America I spoke about a temporary ban, which includes suspending immigration from nations tied to Islamic terror.

— Donald J. Trump (@realDonaldTrump) June 13, 2016

On Sunday, in the hours following the attack, Trump tweeted, “Appreciate the congrats for being right on radical Islamic terrorism, I don’t want congrats, I want toughness and vigilance. We must be smart!”

Trump tweeted Tuesday, “American [sic] must now get very tough, very smart and very vigilant. We cannot admit people into our country without extraordinary screening.”

This is not the first time Ryan has clashed with Trump over his controversial opinions. Ryan also disagreed with Trump’s statement about Judge Gonzalo Curiel last week, saying it was“the textbook definition of a racist comment” and should “be absolutely disavowed,” according to NPR. Despite their differences, Ryan stands by his June 2 endorsement of Trump for president.

The presidential election seems to have taken its toll on Ryan. Politico reported that last week he joked, during a conversation with magician David Copperfield, that he wished he could make himself disappear.