Nutter juggles non partisan mayoral role with Democratic duties

For Mayor Nutter the shift from non-partisan policy advocate to Democratic mouthpiece can happen fast.

Nutter this morning appeared in his new role as president of the non-partisan U.S. Conference of Mayors, holding a press conference in a ballroom at the Ritz Carlton to call on the federal government to invest in cities. Then he walked into the hallway and did a political event slamming presumptive GOP presidential candidate Mitt Romney for not releasing more tax returns.

Nutter said his political work shouldn't have a negative impact on the Conference's non-partisan efforts.

"We want to hear from both candidates, hear from both camps, we want to make sure whoever is elected in November and sworn in in January has the interest of cities at heart. In our individual capacities we always reserve the right to be actively engaged in the political process," Nutter said.