The 2016 US presidential elections saw a historic upset when Donald Trump defeated Hillary Clinton, becoming the fifth US president to win the Electoral College while losing the popular vote. Trump's victory was marked by flipping big margins with working-class and white voters in key Midwestern states. Despite being heavily favored to win, Clinton ultimately fell short due to Trump's strong showing in these areas.

Source: https://www.wionews.com/world/us-elections-2016-the-dawn-of-the-trump-era-and-the-fall-of-democrats-771702