As of March 31, Hillary Rodham Clinton's Senate re-election committee had 36 people on its payroll and $19.7 million in the bank, although Republicans still haven't decided which of two relatively unknown candidates to run against her. By contrast, Rick Santorum of Pennsylvania a top Senate Republican trailing in the polls in his bid for re-election had 23 salaried staffers and a mere $9 million on hand, federal records show. Clinton's re-election efforts are dwarfing her colleagues' campaigns and prompting speculation that she already is gearing up for a presidential bid in 2008. "It's hard to say she's not running...