January 16, 2014 1:17 am Breaking down the politics Bachmann loses staff, Romney makes his run official in N.H. US & World Videos 3:13 Slowest mail happens to be in key swing states 0:44 Kamala Harris to Oprah: ‘If somebody breaks into my house, they're getting shot' 4:27 What do undecided voters need to hear from Donald Trump and Kamala Harris? 3:59 Does the Secret Service need an overhaul? 0:38 Biden: The Secret Service ‘needs more help'