Biden, 80, received news of the fatal shooting - which has left at least 22 in Lewiston dead - this evening, but still attended a scheduled State Dinner at the White House with visiting Anthony Albanese.
Shorter than a baseball bat and lighter than a bowling ball, the AR-15 rifle is America s favorite semi-automatic rifle - as evidenced by the one in 20 people who own them.
Here is DailyMail.com s live coverage of the ongoing active shooter incident in Maine , which has left 22 dead and dozens injured. The shooter remains at large.
Army reservist and firearms instructor Robert Card, 40, is currently being hunted as a suspect in the deadly shooting by state and federal police. Police have warned civilians to stay away from Card