In December, the U.S. House of Representatives passed articles of impeachment of President Donald Trump—focusing on abuse of power and obstruction of Congress.

• Only three U.S. presidents have been formally impeached by Congress—Andrew Johnson, Bill Clinton and Donald Trump. So far, no U.S. president has ever been removed from office through impeachment.

• Today we’ll look at the issue through the lens of the prosecutor.

• Did the House make a good case? What’s going on with the stall?

• We’ll also look at procedural questions—“can they do that”

• And we’re very lucky to have a former prosecutor turned legal scholar who is an expert in criminal procedure and evidence.