Its been debunked!
From Lynn Sweet
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*Obama's campaign really was launched when he got the backing of then state Sen. Alice Palmer (D-Chicago), who wanted him to replace her as she was planning a run for Congress. Palmer's backing gave him entrée into local influential political circles.
Obama and Palmer would later have a falling out that continues to this day. Palmer changed her mind and decided to run for re-election after all. Obama got Palmer and his other rivals knocked off the ballot. Palmer ended up backing Hillary Rodham Clinton's Democratic primary bid.
*Obama's formal kick-off to announce his run for state senate was at the Hyde Park Ramada Inn on Sept. 19, 1995. Obama was introduced by Palmer in a room filled with supporters at the Ramada, fronting Lake Michigan on South Lake Shore Drive, a stroll from the Museum of Science and Industry.
*Around this time, Obama started to attend a series of coffees in the Hyde Park community where he lived, standard operating procedure for political rookies running in the neighborhoods surrounding the University of Chicago.
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http://blogs.suntimes.com/sweet/2008/10/ayers_alone_did_not_launch_oba.html