http://news.yahoo.com/s/ap_campaignplus/primary_exit_poll_glance;_ylt=AnrdBaDKqw5Sbmp7bwjUa3qs0NUE1 hour, 10 minutes ago
Party switchers lean toward Obama, exit polls show After a six-week lull since the last Democratic primary, Pennsylvania voters were so eager to participate in the hotly contested battle between Hillary Rodham Clinton and Barack Obama that one in 10 voting in Tuesday's primary had changed their party registration since the start of 2008 so they would be eligible to vote in the Democratic race. The contest was open only to registered Democrats. About half the party-switchers had been registered Republicans, while the rest had been unaffiliated with either party or were voting for the first time in Pennsylvania.
Most of those new Democrats were mobilized to come out for Obama, and they were nearly one-fifth of Obama's supporters. Even the former Republicans favored Obama over Clinton, largely invalidating rumors that Republicans would vote strategically in the Democratic primary in support of Clinton, hoping she would be easier to defeat in November.
WHO VOTED
As expected, Pennsylvania's Democratic voters were overwhelmingly white and — as usual in Democratic contests — there were more women than men. Clinton drew her usual strong support among senior citizens and white women, and narrowly won the votes of white men. Those white men have been the swing group in most Democratic contests. She even was competitive with Obama among whites under 30 years old, a group that has favored Obama in many states. Obama won the support of black voters and college graduates of all races. A quarter of Obama's supporters were black, and half had college degrees.
Three in 10 Pennsylvania Democratic voters were union members or had one in their household, and they favored Clinton over Obama. Four in 10 had a gun owner in the household, and gun-owning households also went mostly for Clinton.