He may have ended his presidential campaign, but Lawrence Lessig, activist and Harvard law professor and author of a new updated version of Republic, Lost: The Corruption of Equality and the Steps to End It (Twelve, 2015), continues his critique of Citizens United and the influence of money on U.S. politics.

Lessig says we've been trying to solve the problem of corruption "on the cheap." He says rather than suppressing the influence of money in politics, we need to have bottom-up public funding for campaigns, which would change the dependency of members of congress on the tiniest fraction of the one percent.

Now: @Harvard_Law professor and not-long-ago presidential candidate @lessig. pic.twitter.com/N2cLH9F5O2

— Brian Lehrer Show (@BrianLehrer) December 3, 2015