Rubio on Iran Letter: 'I Would Send Another One Tomorrow'00:37
Sen. Marco Rubio, R-Fla., talks about a controversial letter warning Iran that Congress has the power to challenge any nuclear agreement that the Obama administration negotiates.
Andrew McCabe: Congressional leaders did not object to Russia probe00:51
Bernie Sanders announces 2020 presidential run08:43
Johnson: Past Congresses gave White House ‘way too much power’01:49
Rep. Ocasio-Cortez defends Green New Deal in inaugural address01:31
Rep. Clyburn: Congress may sue Trump over national emergency26:31
Pelosi: Trump has declared national emergency ‘on an illusion’01:27