Outside money has been pouring into the contest.
Last week, the Campaign Finance Institute said more outside funds had been spent in the Virginia Senate race than any other contest in the country ($4.3 million).
The latest spot, courtesy of Crossroads GPS, accuses Kaine of being a "lover" of taxes. Kaine has countered with an attack on Allen's fiscal record. The ad closes with an image of Allen in a bolo tie and a cowboy hat.
DON'T MISS TODAY'S TOP STORIES
Chock full of usable information on today's issues."
Michael, Executive Director
Concise coverage of everything I wish I had hours to read about."
Chuck, Graduate Student
The day's action in one quick read."
Stacy , Director of Communications
Great way to keep up with Washington"
Ray, Professor of Economics