Why did Chris Matthews say Bernie Sanders' win in Nevada is like the Nazi conquest of France?

"Why is Chris Matthews on this air talking about the victory [of] Bernie Sanders, who had kin murdered in the Holocaust, analogizing it to the Nazi conquest of France?" asked Anand Giridharadas of his fellow MSNBC colleague when he appeared on MSNBC's AM Joy.

From The Daily Beast:

Matthews' latest remarks have led to progressives calling on MSNBC to fire the veteran host. The Hardball anchor isn't the only one who has found himself in hot water over his anti-Bernie rhetoric. MSNBC contributor Jason Johnson faced swift and loud backlash after he dismissed the "island of misfit black girls" who supported Sanders.