A national interest group in favor of lower taxes is wading into next year's Senate Race in Minnesota. The group, "Americans for Tax Reform" is running 600 thousand dollars worth of television ads to give Republican incumbant Rod Grams some early exposure. Campaign finance laws don't allow the ads to actually ask the public to vote for Grams and a spokesman from Grams campaign says they had nothing to do with the ads. Larry Jacobs is associate professor of political science at the University of Minnesota. He says the ads are one way for this particular interest group to shape the election agenda.