As you know, we've been reporting for more than a year on the multiple public corruption scandals engulfing Sen. Ted Stevens (R) of Alaska. And Mark Begich, Mayor of Anchorage, is running against Stevens this year and in a pretty tight race. TPM's David Kurtz caught up with Begich at Netroots Nation and did his best to draw Begich out on Stevens's bottomless barrel of political muck ...