His challenge is to appeal both to the GOP's tax-cutting faithful and to independents and moderates.
Economists foresee renewed economic growth over the next few months, but increased inflation and declining wealth will take a bigger toll.
The party's 30-second spot highlights US economic woes.
A convincing win spurs the fight forward, but does little to close the gap in delegate count with Obama.
Stop adding to the oil reserve, some say.
The federal deficit hit $311 billion for the first half of fiscal year 2008, up from $162 billion the year before.
Her viability is at risk if she doesn't, analysts say.
White men are a critical group of voters for Democratic candidates in Tuesday's primary – and the most ambivalent.