Texas Democratic Senate nominee James Talarico led a student protest calling for the city of Austin to divest from a coal-fired power plant that remains the city's single largest power plant and provides it with 10 percent of its electricity, previously unreported video footage unearthed by the Washington Free Beacon shows. Talarico was one of three speakers at the October 2009 "Rise Up Against Coal" press conference, where he called on city lea…