Compiled by Jonathan Helman
CNN Washington Bureau

LA Times: What To Look For In The Pennsylvania Primary
Today in Pennsylvania's hard-fought Democratic presidential primary, there will be a winner and a loser. But the winner might not be the one with the most votes.

Washington Times: Candidates Playing Expectations Game
Sen. Hillary Rodham Clinton dominated Ohio, squeaked out a win in Texas and is looking for a solid victory today in Pennsylvania to keep superdelegates from breaking for her Democratic presidential rival and finally ending the nomination battle. If she gets the big win, she'll have more evidence for her claim that Sen. Barack Obama is unable to deliver in major swing states and, her team says, it will raise serious questions about his electability.

Philadelphia Inquirer: Election Officials Gird For A Hectic Day
With record numbers of new registrants, voter groups and election officials warn of the potential for record numbers of problems at the polls today. Though they anticipate the traditional complaints - errors in voter rolls, overzealous poll watchers, and the like - the overwhelming issue will be the sheer volume.

CNN: Former White House Press Secretary Tony Snow joins CNN
Former White House press secretary Tony Snow will join CNN as a conservative commentator beginning Monday.

Washington Post: Clinton, Obama Make Last Pitches To Pennsylvania
Sens. Hillary Rodham Clinton and Barack Obama offered Pennsylvania voters their closing arguments on Monday, winding down a nearly two-month campaign in the state that has done little to bring clarity to the Democratic presidential contest.

WSJ: Democrats Cancel Raleigh Debate
The North Carolina Democratic Party canceled a presidential debate that was to take place on April 27, in advance of the state's May 6 primary, citing financial and time constraints as well as fears that the event would resemble last week's ABC News debate, which drew criticism for its moderators' focus on scandals over policy.

Washington Post: McCain Campaigns in 'Forgotten Places'
Sen. John McCain launched an effort to reach out to minorities and the poor yesterday by traveling to Selma, Ala., saying he will spend the week visiting people who have been ignored by both political parties.

WSJ: Four Groups Of Voters May Be Key To Election
As Democrats head to the polls in the crucial Pennsylvania primary Tuesday, a much clearer view of the U.S. electoral puzzle is starting to emerge from the fog of Campaign 2008. Four groups of voters — working-class males, young people, rural and small-town Americans and Hispanics — stand out as the key pieces of that puzzle. All four groups are in flux, and they will provide the leading indicators of where the race is heading.

WSJ: McCain Tax Cuts Would Bloat Deficit Or Take Huge Spending Curbs
Sen. John McCain is proposing tax cuts that would either cause the federal deficit to explode or would require unprecedented spending cuts equal to one-third of federal spending on domestic programs.

NY Times: In Clinton vs. Obama, Age Is One of the Greatest Predictors
In a campaign where demographics seem to be destiny, one of the most striking factors is the segregation of voters by age. In state after state, older voters have formed a core constituency for Mrs. Clinton, who is 60, while younger voters have coalesced around Mr. Obama, who is 46. Age has been one of the most consistent indicators of how someone might vote — more than sex, more than income, more than education. Only race is a stronger predictor of voting than age, and then only if a voter is black, not if he or she is white.

WSJ: Voters: Tuned In, Turned Off
At what point do campaign advertisements become counterproductive? As Pennsylvanians finally vote, Sens. Hillary Clinton and Barack Obama might have provided an answer. In one week alone, each candidate unveiled five different television ads. With spending estimated at $20 million state-wide, this battle of primary ads is expected to be one of the biggest ever.