Earlier this morning, Karl Rove appeared on Fox & Friends to discuss Harry Reid's reckless accusations against Mitt Romney. In case you're just joining this controversy, the Senate Majority Leader has spent the last few days peddling a scurrilous and evidence-free claim that Romney is a serial tax evader. Rove wondered aloud why our fraudulent post-partisan prince of a president hasn't denounced Reid: Karl Rove Calls Out Harry Reid's 'Slimeball Nature'; Says the Senate Majority Leader Should Be 'Embarrassed and Ashamed' There's a pretty straightforward answer to this question. Obama isn't lifting a finger to put an end to this...