Sen. John McCain tried Monday to relaunch his campaign with a pledge to use broad-based tax cuts to revive the economy -- and a string of barbs contrasting his views with Sen. Barack Obama's.
"The choice in this election is stark and simple," McCain, the presumptive Republican nominee, told a town hall meeting in Denver. "Senator Obama will raise your taxes. I won't. I will cut them where I can."
Obama, the presumptive Democratic nominee, countered by promising that he won't raise taxes on anyone who makes less than $250,000 a year.
"If Senator McCain wants a debate about taxes in this campaign," Obama told supporters in Charlotte, N.C., "that's a debate I'm happy to have."
Neither candidate's address contained new proposals. McCain's chief purpose was not only to shift his campaign's focus squarely to the economy but also to reignite his White House bid after weeks of organizational trouble and muddled messages.
Carly Fiorina, a senior McCain adviser, described the new phase as "a little bit like a start-up company becoming a multimillion-dollar corporation."
But David Carney, a Republican consultant and President George H.W. Bush's White House political director, saw McCain's shift in starker terms: "The biggest problem was they talked about two or three different things every week."
That could be tough to fix for McCain, whose maverick tendencies have fueled his political success. He also faces the problem of running as a Republican in a year when the party's approval ratings are dismal.