WILL CAIN (HOST): However you characterize what happened in the United States of America today, this is a defining moment, a seminal moment, a partisan moment, one that generations will look back on and ask, "Was this a moment we broke apart or we were able to come together?" And the answer to that question will be the questions we ask tonight. Was there an evidentiary basis? Was there a legal basis? Or was this a partisan witch hunt?