GOP Establishment to Blame for Trump's Rise?

Against all conventional wisdom, Donald Trump is still running for president and leading the polls for the Republican nomination. The GOP establishment is scared to death of him, but in many ways had a large hand in creating his candidacy. Over the last several election cycles, voters elected Republicans who promised much and delivered little. The resentment has built up to a point where voters are happy to embrace a tough-talking outsider who promises change. Also, Hillary Clinton's campaign is wobbling with news about her indefensible email server scandal.