"Trump voiced his contempt for the norms that define and safeguard our democracy with a promise to jail his chief political opponent. This, again, was the most important moment of the debate. Nothing else—not Clinton’s poor answers for her private speeches, nor Trump’s abject ignorance—comes close. And it’s all the more important given Trump’s larger platform. If elected, the Republican would use the force of the state against nonwhites and religious minorities, from forced deportations of unauthorized Hispanic immigrants to surveillance of Muslim Americans and a return to stop-and-frisk. Trump already promises an authoritarian state for millions of Americans. This statement—planned and strategically deployed—just shows the scope of his vision."

http://www.slate.com/articles/news_and_politics/politics/2016/10/donald_trump_tells_hillary_clinton_you_d_be_in_jail.html