Think tanks like the John Locke Foundation promote liberty and publicize the instances when elected officials stray from their duty of protecting individual rights.

Lynn Harsh, vice president of leadership development at the State Policy Network, discussed the critical role of free-market think tanks in public policy debates across the country during a presentation today to the John Locke Foundation’s Shaftesbury Society.

In the video clip below, Harsh explains how think tanks help fight politicians’ natural tendency to join the “ruling class.”

2:55 p.m. update: Click play below to watch the full 48:22 presentation.

You’ll find other John Locke Foundation video presentations here.