Former Vermont Governor and 2004 presidential candidate Howard Dean recently spoke out about the need for President Barack Obama to reclaim his progressive base. "You can't turn your back on [those who helped elect you] because if you do, it's going to be hard to find any friends," the former head of the Democratic Party told the AP . Dean's right -- turning on the base is sure to keep Obama in trouble. Almost half of all Democratic-leaning voters would support a challenger to Obama in the 2012 Democratic primaries. If that happens Obama may seem weak, making it more difficult for him to win a re-election campaign.