Members of the public walk under a billboard promoting the CNN Democratic presidential debate, Tuesday, Oct. 13, 2015, in Las Vegas.
Members of the public walk under a billboard promoting the CNN Democratic presidential debate, Tuesday, Oct. 13, 2015, in Las Vegas. John Locher AP
Members of the public walk under a billboard promoting the CNN Democratic presidential debate, Tuesday, Oct. 13, 2015, in Las Vegas. John Locher AP