PORTSMOUTH, N.H. - Hillary Rodham Clinton's eyes welled up and her voice broke repeatedly Monday as she talked with voters in a restaurant about her campaign for the presidency. The former first lady was making a last-minute pitch for support as she spoke on the eve of the state's primary, with polls showing her trailing Democratic rival Barack Obama. Asked by a sympathetic voter how she keeps going in the grueling campaign, she replied, "It's not easy. It's not easy." "And I couldn't do it if I just didn't, you know, passionately believe it was the right thing to do,"...