NBC News: St. Louis lawyer who waved rifle at protesters running for Senate in Missouri
Mark McCloskey joins a Republican primary field that includes former Gov. Eric Greitens.
McCloskey is facing felony charges for unlawful use of a weapon and tampering with evidence. The Republican is using the incident in launching his campaign saying, “An angry mob marched to destroy my home and kill my family, I took a stand to defend them. I am a proven fighter against the mob.”