Hillary Rodham Clinton is holding a commanding lead over Barack Obama for the Democratic presidential nomination in New Hampshire, a poll released Sunday found. Clinton had the support of 40 percent of those surveyed compared to 20 percent for Obama, Marist College Institute for Public Opinion said. John Edwards was third (12 percent) and Bill Richardson fourth (7 percent), the Associated Press quoted the Poll as saying. On the Republican side, Mitt Romney held a slight edge over Rudy Giuliani (25 percent to 21 percent). John McCain was third (18 percent) and Fred Thompson fourth (10 percent). Clinton was the overwhelming choice among those polled who want a strong leader or someone who will bring about change — 44 percent chose her compared with 20 percent for Obama and 11 percent for Edwards.