NASHVILLE, Tenn. — Barack Obama has opened his biggest lead over John McCain of the fall campaign, according to a new Ipsos / McClatchy poll that puts him ahead nationwide by 7 percentage points.
Obama's gain appears to come from two key factors.
First, voters are ever more anxious about the faltering economy and trust Obama by a 15-point margin over McCain to steer it. Second, their confidence that McCain's running mate Sarah Palin is qualified to step into the presidency if necessary has fallen sharply.
The net effect is seen in the nationwide support for all the major candidates:
— Obama, the Democratic nominee, had the support of 47 percent of registered voters.
— McCain, the Republican candidate, had the support of 40 percent.
— Independent candidate Ralph Nader had 3 percent.
— Libertarian candidate Bob Barr had 1 percent.
http://news.yahoo.com/s/mcclatchy/20081007/pl_mcclatchy/3066061_1