Republican venality unintentionally reinforces the conservative argument that government is corrupt. Democratic venality undermines the Democratic argument that Washington can be trusted to do good.

Liberalism has not expanded because it has not had a Martin Luther, a leader committed to stripping away the corruptions, complexities and indulgences that have grown up over the years.

If you’ll forgive some outside advice, President Obama might consider running for re-election as Luther. It’s not enough to pick a series of small squabbles and then win as the least ugly man in the room. He might run as someone who believes in government but sees how much it needs to be cleansed and purified.

Make the tax code simple. Make job training simple. Make Medicare simple. Every week choose a rent-seeker to hold up for ridicule and renunciation. Change the Congressional rules. Simplify the legal thickets that undermine responsibility.

If Democrats can’t restore Americans’ trust in government, it really doesn’t matter what problems they identify and what plans they propose. No one will believe in the instrument they rely on for solutions.