LA CROSSE, Wis. (WHBL) - Vice President Joe Biden continued his attacks expressed in Thursday night’s debate during a campaign stop in La Crosse yesterday. Biden addressed a crowd of about two thousand at the University of Wisconsin-La Crosse Cartwright Center. He outlined what he calls “fundamental differences” between President Obama’s agenda and the one pursue by Republican challenger Mitt Romney. Political observers say the Biden visit shows Wisconsin’s electoral votes are still up for grabs. Romney and running mate Paul Ryan have made 15 campaign stops in the state since last April.