David Hogg: Trump should declare national emergency on gun violence

Parkland school shooting survivor and gun control activist David Hogg criticized President Trump's proposal for a national emergency to fund a border wall on CNN Tuesday, countering that "40,000 Americans dying annually from gun violence is a pretty damn good" topic for a national emergency instead.

The state of play: House Democrats will introduce a bill that will require background checks on private transactions for gun sales on Tuesday. The bill's introduction coincides with the 8th anniversary of the shooting of former Arizona Rep. Gabby Giffords, was nearly killed in a shooting that left six others dead in 2011.

Go deeper: Parkland survivor David Hogg says he'll attend Harvard in the fall