ST. LOUIS (Reuters) - President Barack Obama challenged Republican leaders on Tuesday to put his entire $447 billion jobs plan to a vote, rather than breaking it up, to show American voters "exactly where members of Congress stand." Obama, a Democrat facing a tough re-election battle in November 2012, sent bills for trade pacts with South Korea, Colombia and Panama to a seemingly receptive Congress on Monday but the mood in Washington has otherwise been fractious as his jobs package comes apart at the seams.