A big challenge for Obama is the quest for the white, blue-collar vote.
As Massachusetts governor, he underwent an evolution of his own, withdrawing support for a gay teen suicide prevention group.
Young and black voters are at odds on the issue, and it's anathema in some swing states .
Ceding a potentially losing fight over the Bin Laden death, the Republican turns to President Obama's greatest vulnerability.
A green light from the Supreme Court could produce laws that worsen the GOP's problems with Hispanic voters.
On Tuesday, five states will hold the first primaries since Rick Santorum dropped out. Don't forget: Newt Gingrich and Ron Paul are still running.
The Florida primary is long over, but the senator's endorsement gives Romney much-needed Tea Party and conservative credibility.
Although he faded at the finish, his outreach to younger, more liberal, and non-traditional voters has definitively shifted the GOP conversation.
The unorthodox candidate has brought fresh blood to the GOP, but it will be hard for Republicans to hold onto them once Paul is out of the picture.
With still more televised forums scheduled during the GOP presidential primary, fatigue is starting to set in
Unorthodox presidential campaign taught political veterans new lessons
The former Massachusetts governor will face the same criticism over and over -- but he's got a plan for how to handle it
Did Clarence Thomas's high-profile confirmation hearings desensitize Americans to inappropriate behavior in the workplace?
Despite the explosive story about allegations of sexual harassment during the 1990s, the candidate delivered a speech in Washington
The former Massachusetts governor can expect a barrage of TV ads questioning his record. This week marks the beginning.
Has the general election begun? The president and the GOP's top contender appear to be campaigning against each other.
The Texas governor isn't the only GOP star to back the policy, and the debate shows a rift between the party establishment and grassroots