The vote represents one of the most significant legislative actions taken by the House on guns since the 2012 school shooting in Newtown, Conn.
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The House on Thursday approved a funding increase for the national background check system in response to last week’s mass shooting in Santa Barbara, Calif.

Adopted 260-145, the amendment to a 2015 appropriations bill provides an additional $19.5 million in grant funding for the FBI’s National Instant Criminal Background Check System (NICS), which is intended to prevent the sale of guns to criminals and the mentally ill.