With Mitt Romney out and a fresh round of primaries coming up this weekend, the race for the White House has narrowed to three people: Republican John McCain and Democrats Hillary Clinton and Barack Obama. Will a new political dialogue emerge? Voters and candidates talk about change, but what kind of change is actually likely in the campaign ahead? Are voters inspired by messages of hope tired of the slash-and-burn style of campaigning that's marked recent elections? Will cynicism give way to civility in political discourse? How will shifting political alliances affect the way candidates shape their messages to voters?