In her opening segment last night, after Donald Trump’s horrifying anti-immigrant speech, Rachel Maddow put the rise of Donald Trump and the alt-right into political history context. She argues that when one of the two major parties in the US two party system collapses, and can no longer hold its own weight and position in the (flawed) system, the nasty, racist, anti-immigrant, nativists gain power. In the 18th century, after the collapse of the Whig party, it was the so-called Know-Nothing movement, viciously against the Other of that time, primarily Catholic and Chinese immigrants. Nativism means putting Americans, and only true-blooded Americans, first, above everyone else, and blaming every ill of society on immigrants. Maddow convincingly argues that is what Donald Trump is doing, and that this isn’t new but history repeating itself, and it’s equally scary. Must see TV.