Almost 20 percent of women who voted for Hillary Rodham Clinton said they were now John McCain supporters, but Barack Obama was still leading in a poll of female voters. The Lifetime Network national poll showed that women were coalescing around their candidates but that neither had sealed the deal by breaking the 50 percent mark: Mr. Obama led Mr. McCain 49-38 percent. "Women will elect the next president," said pollster Celinda Lake, referring to the largest voting bloc in presidential elections. In most primary states, women were 55 percent or more of the electorate. Married women, who most often...