The campaign finance dream team of Sens. Russ Feingold and John McCain is reuniting to block President Barack Obama’s first appointment to the Federal Election Commission and to push him to shake up the embattled agency. In a surprising move that invokes memories of a bitter skirmish during Obama’s annihilation of McCain in last year’s presidential election, Feingold (D-Wis.) and McCain (R-Ariz.) have placed a hold on the FEC nomination of Democratic labor lawyer John Sullivan, POLITICO confirmed Tuesday. Their hold could reverberate in Congress, the White House, the 2010 midterm elections and beyond. In a statement issued in response...