RYE, N.H. - Presidential hopeful Barack Obama (news, bio, voting record) opened a two-day offensive against Republican Sens. John Sununu (news, bio, voting record) and Judd Gregg (news, bio, voting record), telling New Hampshire voters on Friday their senators should do more to end the war. Obama, an Illinois Democrat, told a town hall audience in Rye that Sununu, Gregg and 14 other Republican senators are the main roadblocks to ending the unpopular war in Iraq. Obama backs a plan that would give the Democratic-controlled Congress more control over the war's finances and begin a troop redeployment before President Bush...