Harvard Law School professor Larry Lessig announced on Tuesday his intention to run for president on the single issue of election and campaign-finance reform.

In a series of videos released on the web, Lessig says he wants to be a “referendum president,” voted into office on the basis of his Citizen Equality Act of 2017, which would incorporate existing proposals by members of Congress and reform groups to promise an “equal right to vote,” “equal representation” and “citizen-funded elections.”

“That single purpose would put overwhelming political pressure on Congress to do what the people demanded,” Lessig said in one of the videos. If the bill passes, he would “step aside and the elected vice president, a kind of president in waiting, would step in.”