Ralph Nader announced his candidacy for the presidency on Sunday, fueling speculation that he might serve as a spoiler in this year’s election. Will he do better in 2008 than he did in his earlier bids? In a February 2007 poll, 3 percent of Americans said they would definitely vote for him and 14 percent said they might do so (Nader got 2.7 percent of the national vote in 2000, but only a fraction of that in 2004). Nader’s public ratings are hardly stellar: when asked whether they wanted him to enter this year’s presidential race, a strong majority (65 percent) said they did not. A Fox News poll conducted in June found that more Americans (42 percent) had an unfavorable view of Nader than a favorable one (30 percent). Source: Fox News/Opinion Dynamics, February 2007.