Assemblyman Nathan Fletcher announced today that he is dropping his Republican party preference and running as an independent for Mayor in San Diego.

The late decision will test his credibility with independent voters. Fletcher despite heaving funding from the city's Republican establishment and seen as one of the party's stars, was running well behind in the polls.

California Republicans had endorsed San Diego City Councilmember Carl DeMaio, who also leads in campaign funds.

Polling and focus groups have suggested that independent voters put a premium on authenticity. Is Fletcher's switch an honest change of heart or a cynical campaign gimmick? His viability likely hinges on what these critical swing voters will believe.

Fletcher's statement video can be viewed here: