In "Here, right matters," retired Lt. Col. Alexander Vindman talks about reporting Trump's infamous Ukraine call, and the cost to him and his family.

      

The impeachment trial results are in, the president was acquitted, but with the 2020 elections starting, it's not the last we've heard of impeachment

       

Impeachment trial rules are established after a marathon session, including a warning from Chief Justice John Roberts to senators on their conduct.