Some have found Metaxas to be a. questionable source. Be careful.
https://religionandpolitics.org/2016/10/18/eric-metaxas-bonhoeffer-delusions/"Likening the Third Reich to a Democratic administration would not be surprising from the obstreperous right-wing crusader Ann Coulter, who appears regularly on “The Eric Metaxas Show.” But Metaxas, who purports to be a winsome, irenic apologist for the Christian faith, in the fashion of his friends Tim Keller and Os Guinness, blindsided some evangelicals in proclaiming that a Hillary Clinton victory in November portends the vanquishing of the Republic—and that taking Bonhoeffer seriously in our time means voting for Donald Trump.
"At the same time, Metaxas emboldened and excited many other evangelicals with his supreme confidence that the 2016 presidential election confronts America with a world historical decision: salvation by Trump, or damnation through “Hitlerly,” as Metaxas has called Hillary Clinton, the Democratic presidential candidate and lifelong Methodist, on social media. With Hillary, America will not get a second chance. A certain sector of white American evangelicals labors beneath the unrelenting anxiety that the Democratic Party and its leaders actively seek to destroy the Christian way of life."