Name: Trump fails crucial nuclear test (again)
Uploaded: Wed Sep 28 2016 01:23:19 GMT+0000 (UTC)
Duration: 6 min 17 s
Description: Rachel Maddow revisits Donald Trump's ignorance of the U.S. nuclear triad in a Republican primary debate and notes that his answers Monday night show he either didn't care to learn more or failed at doing so for the first presidential debate.

Sept. 28, 201606:17