Why were 3 Tennessee lawmakers facing expulsion from the House?

State Rep. Justin Pearson, D-Memphis, listens to remarks on the floor of the House chamber, Thursday, April 6, 2023, in Nashville, Tenn. Tennessee Republicans are seeking to oust Pearson and two other House Democrats for using a bullhorn to shout support for pro-gun control protesters in the House chamber. George Walker IV, Associated Press Three Democratic Tennessee House legislators faced expulsion from the House Thursday, and a two-third majority of the House voted to oust two of those lawmakers.The Republican-controlled House voted to expel Rep. Justin Jones by a 72-25 vote and Rep. Justin...