Must-read Ken Vogel: “After spending $200 million trying to oust President George W. Bush in 2004, big liberal donors are hesitant to jump back into the outside money game, even as Republican super PACs emerge as the Goliaths of 2012. Ground zero for the debate is a little-known, but highly influential club of mega-donors. How the fight shakes out will go a long way toward determining whether top Democratic groups can keep up with their deep-pocketed GOP counterparts – or be badly outgunned heading into the fall, leaving President Barack Obama and other Democratic candidates at an extreme disadvantage.”