Hillary Clinton's campaign has staked her future in this race on the results of Texas's and Ohio's March 4 primaries. As rival Barack Obama has risen to match her in the polls in both states, both sides have intensified their…

Republican presidential candidate Rudy Giuliani traded barbs with rivals in New Hampshire this weekend as his camp turned a new focus on the early primary state. A Giuliani biographer and a political reporter look at the candidate's background and his…