He was arrested during protests focused on campaign finance reform.

The Harvard Crimson reports.

Lessig Arrested at Campaign Finance Protest in Washington

Police arrested Harvard Law professor and former presidential candidate Lawrence Lessig last week during protests focused on campaign finance reform in Washington, D.C.

Organized by the nonpartisan group Democracy Spring, a movement dedicated to campaign finance reform and supporting disadvantaged voters, the week-long sit-in protest in the nation’s capital came in the midst of this election cycle’s primary season.

“We are seeing all this money being poured into what is by far the most expensive election in our nation’s history,” Peter J. Callahan, a spokesperson for Democracy Spring, said.