Community gun safety advocates and members of the public hold signs during a rally and vigil to honor victims of gun violence on the steps of the Colorado State Capitol, in Denver.

President Barack Obama’s administration on Monday issued new guidance to clarify that all dealers selling guns – whether at shows, in flea markets, on the Internet or in stores – are required to get licenses and run background checks on buyers, the White House said.

Attorney General Loretta Lynch said she could not estimate the number of gun sellers or buyers who will be affected by the new guidance from the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF).

The FBI will boost its workforce for processing background checks by 50 percent, hiring more than 230 new examiners and staff, Lynch said.

Obama also will propose hiring 200 new ATF agents and investigators, and will ask Congress to invest $500 million to boost access to mental healthcare, the White House said.

Related articles across the web

• REALLY? Obama loosens gun purchase requirements for non-citizens
• Five Years Later: Family of Slain Border Patrol Agent Brian Terry Still Seeks Justice
• Three arrested for deadly Northfield fire
• One of the ATF thugs who entrapped Randy Weaver gets to draw a pension check -- which is more than you can say for Vicki and Sammy Weaver.
• Where Democratic Candidates Agree and Disagree on Gun Control
• An open source government is a faster, more efficient government
• White House Planning Executive Action on Guns, But Faces "Legal and Political Hurdles"
• Malfeasance Rewarded
• Where Democratic Candidates Agree and Disagree on Gun Control
• Where Democratic Candidates Agree and Disagree on Gun Control