Mason-Dixon: Allen (R) increases lead over Webb (D)

[Adlai Stevenson]

Although most people think Mason-Dixon are the best pollsters out there, I am a bit non-plussed as to why two of their recent polls have shown Republicans with bigger leads than other surveys, i.e. this poll in Virginia and another in Tennessee.

However, I can believe this one.  I actually think I'm beginning to trust polls more that show high undecideds such as this one, typically in a race like Virginia where there must be a few moderates, independents and conservative Democrats who would lean towards Allen but who Webb is making a play for.

[Adlai Stevenson]

Perhaps Mason-Dixon appeared to be so accurate in 2004 because its samples lean Republican?  As has already been stated, 2004 was a good year for high turnout amongst GOP voters.  Mason-Dixon's polls anticipated the results very accurately.  However, I'm sorry I may be wrong but I do not believe Allen is leading by 16%.  I also think 625 people as a sample is too small; I think the perfect sample would be between 900 and 1,000 people.  Also is this a poll of likely or registered voters or both?