During his campaign sweep though California this week, Bob Dole emphasized his support for Proposition 209, the controversial ballot measure that would outlaw affirmative action in the state. Dole used to support affirmative action, but switched his position to attract more votes. Meanwhile opponents of the initiative have begun running TV ads showing former Ku Klux Klan leader David Duke in a white Robe in front of a burning cross. Duke was recently in California to participate in a debate on affirmative action. The most recent polls show that more than half of Californians plan to vote for the measure. Laura Saponara has this report on what Proposition might mean for California and the nation…