AP: Bloomberg begins effort to gauge '08 support

(AP) - Will he or won't he? Associates of New York Mayor Michael Bloomberg say he's begun detailed nationwide polling and voter analysis as he considers a third-party run for the White House.
The exhaustive, sophisticated 50-state data collection drive quietly started months ago.
The scope of the research, revealed to The Associated Press, shows how seriously Bloomberg is mulling a run despite almost daily denials.
The man who's done micro-targeting for Bloomberg's two mayoral campaigns says they want "a hard-headed sense of their chances."
There was no comment from Bloomberg's spokesman.