Those Obama voters are a fickle bunch : Hope has turned to doubt and disenchantment for almost half of President Barack Obama’s supporters. More than 4 of 10 likely voters who say they once considered themselves Obama backers now are either less supportive or say they no longer support him at all, according to a Bloomberg National Poll conducted Oct. 7-10. Three weeks before the Nov. 2 congressional elections that Republicans are trying to make a referendum on Obama, fewer than half of likely voters approve of the president’s job performance. Likely voters are more apt to say Obama’s policies have harmed rather than helped the economy. Among those who say they are most enthusiastic about voting this year, 6 of 10 say the Democrat has damaged the economy. “He’s made compromises that have hurt the middle class,” says poll respondent Alan Graham, 55, a surgeon in London, Kentucky, who supported Obama in 2008 and now is on the fence about the president. “I think the lobbyists for the big businesses are having their way with him.” Some of them aren’t all that bright, either. If the lobbyists for the the big businesses are having their way with him, why is he going after the U.S. Chamber of Commerce with bogus charges that they’re spending foreign money on campaigns ? If there’s one thing even the dumbest Obama voter should know by now it’s that Obama hates businesses of all types. If it makes a profit, it’s evil. These disaffected Obama voters are the very people he needed to motivate to get to the polls this year to save his Dem majorities.