July 13, 2015 6:30 am Walker To Join Crowded GOP Field Republican Scott Walker will become the 15th candidate to join a crowded GOP primary. While much focus has been on Donald Trump and his controversial remarks, Wisconsin’s governor will try to shift the focus. US & World Videos 9:55 Single mom sobs after landing dream job thanks to Pennsylvania Women Work 10:28 Family receives emotional surprise after daughter's cancer battle 3:48 Viral therapy dogs jump into action after tragic D.C. plane crash 0:28 ‘There was a collision': Air traffic control recording captures moment of crash 3:30 Witness describes seeing plane in moments before it crashed
