As evidence of Mr. Clinton's impact, the campaign cites the Pennsylvania primary, which Sen. Clinton won by a margin of nearly 10 percentage points over Sen. Obama. Campaign data show that Sen. Clinton won by huge margins in several rural counties that her husband visited: 44 percentage points in Armstrong County, 44 points in Cambria County, 48 points in Carbon County and 50 points in Greene County. This compares with an edge of 26 points for Hillary among rural voters statewide. In Bucks County, a Philadelphia suburb that Mr. Clinton visited, Sen. Clinton won by 26 points, compared with only three points in suburban Philadelphia as a whole, according to the campaign data.
Which voters does Bill Clinton appeal to? They are called "Bubba voters."
Mr. Clinton's appearances are designed to boost Sen. Clinton's appeal with working-class and so-called "Bubba" voters, older white men who are likely to sympathize with Democratic economic policies but supported Ronald Reagan and other Republicans. Mr. Clinton is also sending out fund-raising appeals, with strong results, two operatives say.
He's been hitting North Carolina hard. The numbers in that state are daunting for Hillary:
North Carolina offers 115 delegates, and roughly 38% of the state's registered Democrats are African-American, a demographic that favors Sen. Obama. According to exit polls, Sen. Obama captured 90% of black voters Tuesday in the Pennsylvania primary. Still, Sen. Clinton beat Sen. Obama in Pennsylvania by 55% to 45%.
She's not giving up:
Given Sen. Obama's double-digit lead in recent polls, many observers expected the Clinton campaign to concede North Carolina and pour its limited resources into tightly contested Indiana, which offers 72 delegates and also votes May 6. Instead, the campaign has opened roughly 20 offices around North Carolina and is expanding its staff of more than 50 paid employees. A $10 million cash infusion in the 24 hours after Sen. Clinton's Pennsylvania victory is helping.