Election futures speculators at InTrade are seeing an increasingly uncertain race. Their bets are still on Sen. Barack Obama to defeat Sen. John McCain in the November election for U.S. President, but his falling price reflects their decreasing confidence in that outcome. Their numbers (Bid/Ask):

Obama: 57.0 / 57.5
McCain: 42.8 / 42.9

Previous entries: Post-DNC and mid-July.