IE 11 is not supported. For an optimal experience visit our site on another browser.

Chris Matthews: Impeaching Trump is a matter of national security

01:31

On the impeachment of President Trump, Chris says “And that's why it's here, in the area of national security, that the Democrats need to make their final case. It's not just about him wanting to throw a handful of political mud at Joe Biden. It's about his selling out the country's global security to get hold of it.”