Nearly half of Republican voters support federally decriminalizing cannabis, and GOP lawmakers are now beginning to reflect their constituents’ view by increasingly supporting broad legalization at the state and federal level.

“We need the federal government just to get out of the way,” said Rep. Nancy Mace (R-S.C.), who introduced the first Republican bill in Congress to decriminalize marijuana this past week and pointed to more than 70 percent of Americans supporting the idea.

Stronger Republican involvement could hasten a snowball effect on Capitol Hill, where Democrats lead the charge on decriminalization but lack results. It could also chip away at Democrats’ ability to use cannabis legalization to excite progressives and younger voters as the midterms approach.

“When the culture becomes more accepting of something, even the most resistant groups get tugged along,” said Dan Judy, vice president of North Star Opinion Research, which focuses on Republican politics.