Two new reports show the U.S. Department of Education has been hit with a massive increase in complaints about schools' handling of sexual violence over the last few years. "This data underscores that more must be done to address the backlog of ongoing Title IX investigations into how college campuses handle sexual assault, including the UVA investigation that has been pending since June 2011," Sen. Tim Kaine (D-Va.) said in a statement Tuesday, highlighting thongoing inquiry at the University of Virginia.