• By  Susan Davis reports on the presidential race.  Here’s some
good news for Sen. Hillary Clinton: Even though rival Sen.
Barack Obama continues to edge her in fund-raising,
superdelegate endorsements, and overall momentum in the
Democratic primary fight, she’s still on top in three critical
general election states in the latest Quinnipiac University poll
out Wednesday.  In the general election battlegrounds of Ohio,
Pennsylvania, and Florida, Clinton leads both Obama and likely
Republican nominee Sen. John McCain. The key to Clinton’s
success is built largely on her continued support among white
voters—an important voting bloc in Ohio and Pennsylvania, and
one that Obama has yet to make dramatic polling inroads with in
those states.  Here’s the breakdown. Pennsylvania: Clinton leads
Obama in the primary fight 50%-41%, and while her support
dropped three points from the last Quinnipiac survey, Obama’s
hasn’t improved. In a general election match up, Clinton leads
McCain 48%-40%, while Obama has a narrower 4