The dynamic has changed just one week before the U.S. presidential election.

President Barack Obama is acting and looking presidential by taking charge in the aftermath of Superstorm Sandy, committing fast federal funding from the Federal Emergency Management Agency (FEMA). 

The wounds from Sandy are still so raw, that it would be political suicide for Republican rival Mitt Romney to criticize the president’s management of the crisis. Even the most loyal partisan Republican governors like New Jersey Gov. Chris Christie are praising Obama’s response — publicly thanking him with personal tweets and telling CNN’s Piers Morgan on Tuesday night that there is no way he’s going to play the partisan game in this situation

I recall a conversation I had in Toronto back in the spring with former George W. Bush chief of staff Karl Rove and Democratic strategist James Carville. Both of them (at that time) believed the election would be about the economy, but agreed that a significant, unforeseen development at home or abroad could change the dynamic and tipping point.