By Bill Mears
CNN: "The burden of proof is clearly on the White House with any future Supreme Court nominations," said Gary Marx, executive director of the Virginia-based Judicial Crisis Network. "It was assumed on the last go-around that it would be more of a rubber stamp," with Sotomayor winning easy confirmation. "But we're in an entirely new world politically. Obama, I think, wants to take a more aggressive posture, and continue to appeal to his liberal base with the next court nominee, but the Democratic Senate may decide it's not in their best interest to hitch their wagon to the president."