Lawmakers looking to draw attention to pet issues have formed groups in favor of everything from auto care to zoos. Now, there’s a caucus for cannabis.

Rep. Earl Bluemenauer said the move — to be announced at a press conference Thursday — is a sign of how mainstream the drive for marijuana legalization has become.

“This is happening all across the country, and its going to continue,” said the Oregon Democrat, an advocate for legalized marijuana since the 1970s. “The industry is growing, as is public acceptance and demand for medical marijuana.”

Blumenauer is one of the caucus’s founding members, along with California Republican Dana Rohrabacher, Colorado Democrat Jared Polis and Alaska Republican Don Young.

A wave of states approved recreational marijuana in November, a seeming boon for the argument that federal laws and regulations need to be revised to keep up.