Jon Stewart did a tremendous job last night with what could easily have been a puffball interview to promote a book. He kept asking Al Gore how he could justify taking so much money—Gore might be wealthier than Mitt Romney now—from the fossil fuel industry when he sold Current TV to Al Jazeera. Gore never produced a satisfactory answer. Here's Politico's quick-cut of the interview:

And you can watch an extended interview on the Daily Show's site.