UPS AND DOWNSMixed numbers on the jobs fronthttp://www.salon.com/2012/04/06/the_fragile_obama_presidency/In a way, the new jobs report released earlier today contained good news for President Obama’s reelection campaign, with the unemployment rate dropping from 8.3 to 8.2 percent in March – bringing it to its lowest level since January 2009, when George W. Bush left office.But, as Andrew Leonard