Name: Iowa caucus special coverage starts at 6pm ET
Uploaded: Mon Feb 01 2016 02:56:15 GMT+0000 (UTC)
Duration: 31 s
Description: Rachel Maddow and Brian Williams co-host special extended coverage of the caucuses in Iowa on Monday, beginning at 6pm ET and rolling live for as long as it takes.

Feb. 1, 201600:31