This bill was introduced in 2019 but I read about it on an Anti site this morning. They said...

"The Refuge from Cruel Trapping Act, H.R. 4716 would prohibit body-gripping, leg-hold, snare and similar traps within the National Wildlife Refuge System. It was first introduced to the House of Representatives in December 2019 before being referred to the Subcommittee on Water, Oceans, and Wildlife."
Source: Blog.theanimalrescuesite.greatergood.com

Link to the bill in Congress:
Congress.gov