Name: US unity on Iran shattered by Sen. Tom Cotton's 'open letter'
Uploaded: Wed Mar 11 2015 01:35:56 GMT+0000 (UTC)
Duration: 10 min 41 s
Description: Senator Angus King talks with Rachel Maddow about how Senator Tom Cotton's open letter to Iran split unified American sentiment on Iran into a partisan issue and undermined the president, congressional authority, and U.S. allies in the process.

March 11, 201510:41

US unity on Iran shattered by Cotton letter