Mitt Romney made his first and final appearance Sunday in Pennsylvania as the GOP presidential nominee, drawing about 25,000 supporters to a cold outd...

WASHINGTON -- With just days before the election, both presidential campaigns are engaging more fully in Pennsylvania, a state that once seemed -- and...

Pro-Mitt Romney super PAC Restore Our Future on Tuesday will begin airing $2.1 million in ads in every Pennsylvania market, a sign Republicans see the...

NEW YORK — Blending governing with re-election politics, President Barack Obama roused a cheering northeast Pennsylvania crowd Wednesday as he w...

WASHINGTON — President Barack Obama reached out fervently Monday to skeptical voters who are still hurting long after the declared end of the re...

Authorities are trying to find out who sent a threatening letter containing a suspicious substance to one of Barack Obama's South Philadelphia campaig...

Democrats cheered on Wednesday when news broke that John McCain's campaign was abandoning Michigan, pulling down its ads and sending staffers to other...

Obama's candidacy has hit its low point. Yet there is no indication whatsoever that superdelegates are inching toward Clinton -- quite the contrary.

Hillary must continue to draw contrasts with Obama, raise questions about the nature and extent of his associations with Rev. Wright and terrorist leader William Ayers, and raise more questions about his values in comparison with hers.

***UPDATE APRIL 24*** The last Democratic primary contest takes place in South Dakota 40 days from today on June 3rd. Read below to see what columnis...

She started with a lead of almost 20 points. But her final margin of 9.2% fell far short of what was needed to stop Obama's nomination. Here's why.

After last night, despite an apparent ten point victory in Pennsylvania, Hillary Clinton is no longer electable in a general election.

The Pennsylvania primary is underway today, and reports are already pointing to a big turnout. Even as Pennsylvanians go to vote, however, several re...

Doug Schoen: The New York Times is Wrong The lessons of Pennsylvania are clear for her going forward. She must continue on a negative or a comparat...

PHILADELPHIA — Hillary Rodham Clinton and Barack Obama collided Tuesday in the Pennsylvania primary, the last of the big-state contests in a Dem...

On the day of the Pennsylvania Primary, Hillary Clinton and Barack Obama ratcheted up the expectations game into the final hours. "I think the que...

In the final push before Tuesday's Pennsylvania primary, Democratic rivals Barack Obama and Hillary Clinton aggressively went after each other in a la...

Barack Obama on Saturday accused rival Hillary Clinton of internalizing "a lot of the strategies and tactics that have made Washington such a miserabl...

With Sen. Hillary Clinton widely expected to win Pennsylvania's Democratic primary on Tuesday, most of the focus is on the margin. Anything less than ...

** PENNSYLVANIA RESULTS: ** 99.44% Reporting Clinton 1,237,696 54.6% Obama 1,029,672 45.4% The latest delegate figures are here, or check out t...

** UPDATED 4/22 ** EXIT POLLS: Check over here for the latest coverage of Pennsylvania exit polls. Obama Office Burglarized: An Obama field office i...

Hillary Clinton appeared before the Alliance For American Manufacturing Forum today in Pittsburgh, and continued to attack Barack Obama for his "small...