 Philadelphia has been home to one vice president, George M. Dallas, and one Civil War general, George B. McClellan, who won his party's nomination for president but lost in the general election to Abraham Lincoln in 1864.In May 2019, former U.S. Vice President Joe Biden chose Philadelphia to be his 2020 U.S. presidential campaign headquarters.According to a 2015 report by the Pew Charitable Trusts, the police districts with the highest rates of violent crime were Frankford (15th district) and Kensington (24th district) in the Near Northeast, and districts to the North (22nd, 25th, and 35th districts), West (19th district) and Southwest (12th district) of Center City.