Springfield, Missouri
Dmitriy Andreychenko, 20, told police he was testing his Second Amendment right.
No shots were fired, but a police lieutenant said that the man's "intent obviously was to cause chaos."
The lawmaker later said his comment was just "an exaggerated statement."
The president avoided specifics while promising to alleviate what he called the "crushing tax burden" on American companies.
WHAT'S HAPPENING
“I was inspired by the everyday moments of my life."