Calling Williams “a great talent” and “a perfect gentleman,” Rep. Billy Long (R-Mo.) wrote that he’ll pray for Williams’s widow, Debbie, and his family.

Rep. David SchweikertDavid SchweikertMembers of Congress demand new federal gender pay audit Republican candidate favored in Arizona special House election Ryan leaves legacy of tax cuts and deficits MORE (R-Ariz.) also expressed remorse about the news of Williams’s death, saying he was “sad to hear about the passing of one [of] the greats” and posting a link to a video of some of the entertainer’s greatest hits.

Sen. Roy BluntRoy Dean BluntGOP senators introduce bill to prevent family separations at border Ernst, Fischer to square off for leadership post Facebook gives 500 pages of answers to lawmakers' data privacy questions MORE (R-Mo.) tweeted of the late star, “Andy Williams was a great man [and] a great friend who spent his life entertaining countless fans around the world. He will be missed. #Branson.” 

The Christmas-music crooner was no stranger to politics. Williams campaigned for his good friend, Robert Kennedy, during the 1968 presidential race and for George McGovern in 1972. After Kennedy was assassinated in June of 1968, Williams sang “The Battle Hymn of the Republic” at his memorial service.

In 2009, Williams made headlines when he told a British newspaper that President Obama was “following Marxist theory” and wanted “the country to fail.”

He later said in an interview with ABC News that his comments “got blown out of proportion.” Williams added, “I have nothing, absolutely, against a liberal Democrat. I just think sometimes, like a lot of Americans, that [Obama] might be guiding us in the wrong direction. But that’s — that’s just from a singer. It really doesn’t mean much.”