She needs the late-deciders: "Undecided Democratic primary voters who wait until Election Day before choosing a candidate have overwhelming went with Sen. Hillary Rodham Clinton -- a trend that she needs to continue in tomorrow's crucial Pennsylvania primary to claim a decisive victory," S.A. Miller writes in the Washington Times.
He needs the new registrants: "An historic spike in Democratic voter registrations in Pennsylvania could help Barack Obama cut into Hillary Clinton's vote in Tuesday's primary, robbing her of the big victory margin she needs to justify continuing the primary fight," Politico's Jeanne Cummings writes. "A poll of those switchers and new registrants released by [Terry] Madonna last week found that Obama was the preferred candidate for 62 percent of them."
Plus some Republicans (OK -- "Obamicans"): "In Bucks County there are 'regular Obamicans' -- former Republicans who volunteer only occasionally for Obama, if at all -- and 'super-volunteer Obamicans,' " The Nation's Ari Berman writes.
"Many of these Obamicans are voting as much against the Clintons as for Obama."
Fuel for the pre- and post-vote spin: "Barack Obama began the month of April with a 5-1 cash advantage over a debt-saddled Hillary Rodham Clinton, setting the stage for his lopsided spending in the crucial primary state of Pennsylvania," AP's Jim Kuhnhenn reports.
"Clinton had $10.3 million in debts at the start of the month and only about $9 million cash on hand for the primaries. Obama reported having $42 million for the primary. (!) Clinton's red ink poses yet another obstacle to her campaign as she seeks to end the primary season with a string of victories."
(And if Obama supporters can pull this one off, they'll have a well-timed financial and public-relations coup. At precisely 1 pm ET Monday, it's "An Obama Minute" -- a 60-second span with a $1 million fundraising goal.)
Considering the miscues and missteps that have marked this six-week period -- Obama may already be a winner. Don't miss the tone of this Philadelphia Inquirer piece, by Larry Eichel: "Consider all that has happened recently, all of it with a Pennsylvania connection. . . . If any of this was bothering Obama in the final days, he hasn't let it show, even as he lashed out at Clinton for what he called her 'slash-and-burn' tactics. . . . The voters get to decide tomorrow whether Pennsylvania will slam the door in Obama's face or decide, after a long and erratic courtship, to welcome him in."
Even aside from delegates -- it's looking near-impossible for Clinton to pull ahead in the popular vote. "To overtake Barack Obama in the nationwide popular vote, Hillary Clinton needs a bigger win in tomorrow's Pennsylvania primary than she has had in any major contest so far. And that's just for starters," Bloomberg's Catherine Dodge and Kristin Jensen report.
"Even if the New York senator wins by more than 20 percentage points tomorrow -- a landslide few experts expect -- she would still have a hard time catching him."
"Victory margins matter because the overall pattern of the race is clearly established," The New York Times' John Harwood writes. "Mrs. Clinton is losing narrowly -- but losing nonetheless. Thus she must change the political weather in a way that halts the drift of superdelegates toward Mr. Obama before it extinguishes her chances altogether."