If Hillary Clinton runs for President in 2008, just 25% of Americans say they would definitely vote for her. That's down five points over the past two weeks. It's also the lowest level of support measured for the former First Lady in 2005. (Review Trends). Forty percent (40%) would definitely vote against Senator Clinton. That's little changed from two weeks ago. Rasmussen Reports has conducted a Hillary Meter poll every other week since April. Only once has the number who say they would definitely vote against Clinton been higher than it is now.