Bush extends lead in latest Newsweek poll.

(From CBS Marketwatch (Stories))

Byline: Elizabeth Cohen, Holly Firfer,

SAN FRANCISCO (CBS.MW) -- President Bush stretched his lead over challenger John Kerry in a nationwide poll released Saturday, while state polls showed electoral-vote turmoil.

A Newsweek poll of likely voters said Bush was preferred by 50 percent to 44 percent for Kerry and 1 percent for Ralph Nader. That is a wider gap than the same poll's data a week ago, when Bush led 48 percent to 47 percent. The margin of error is plus or minus 4 percentage points.

In New Hampshire, which Bush won in 2000, Kerry led a Concord Monitor poll of likely voters, 49 percent to 46 …