2010 Situation Grows More Difficult for Democrats By LIZ SIDOTI January 3, 2010 To minimize expected losses in next fall's election, President Barack Obama's party is testing a line of attack that resurrects George W. Bush as a boogeyman and castigates Republicans as cozy with Wall Street. Four House Democrats from swing districts have recently chosen not to seek re-election, bringing to 11 the number of retirements that could leave Democratic-held seats vulnerable to Republicans. More Democratic retirements are expected. Over the holiday break, another Democrat, freshman Rep. Parker Griffith of Alabama, defected to the GOP. "I can no longer...