Rep. Mike Gallagher (R-WI) lashed out at Satanists in Wisconsin on Sunday after they celebrated the holiday season with their version of a Christmas tree.

During an appearance on Fox News, host Sean Duffy asked Gallagher about one so-called "Satanic Christmas tree" that was displayed at the National Railroad Museum in Ashwaubenon. In all, 66 trees from different religions were on display.

"What's happening in Green Bay, Wisconsin, and what's the community's response to a Satanic Christmas tree in your community?" Duffy wondered.

"The Railroad Museum's response has been insufficient," Gallagher insisted. "When parents and concerned citizens have contacted the Railroad Museum, they've said, well, this is an educational opportunity for kids, which is completely ridiculous, right?"

"I think it's impossible to overstate how offensive this is to Christians," he added. "It would be in quite a little sense the same thing as waving a Hamas flag inside of a synagogue."

Gallagher said Satanists had ruined "a cool, fun thing to take your kids to."