One of the most seasoned pro-marijuana activists in the political world has created a super PAC with one goal this November: to unseat notoriously anti-pot Rep. Pete Sessions.

Sessions, the House Rules Committee chairman from Texas’ 32nd District, has for years blocked bipartisan legislation in the House to protect state-sanctioned medical marijuana vendors from federal crackdown, not letting it out of committee for a floor vote.

“I’d bet all my money that we could legalize medical marijuana but for Sessions,” Rob Kampia, who recently started the super PAC Texans Removing Outdated and Unresponsive Politicians, told the Washington Examiner. “[Sessions] is in fact what I call a sphincter who is constipating the process. … The reason we haven’t won is just process; it’s not content.”

Sessions has such a notorious profile among pro-pot political elements, Kampia indicated, that the $500,000 he plans to raise to oust the 11th-term Republican will go toward amplifying that profile as a main campaign issue.

“Everyone knows who he is and that he’s our biggest problem on Capitol Hill,” Kampia said. “Half of my job has already been done by Pete Sessions himself. All I’m going to do is pass the hat.”