" I can say that it’s actually quite common for members of Congress to have no idea what they’re talking about."
A quote from Matt Yglesias in his post apologizing to Gov. Pence for being too hard on him.
When new to DC Matt was amazed that Pence didn't understand "moral hazard" back in 2005 debates on SS privatization. Since then he's learned his lesson, Congress doesn't do policy well.
His piece is a good read on the structural problems with Congress.