U.S. President Barack Obama

U.S. President Barack Obama

Mandel Ngan/AFP via Getty Images

U.S. President Barack Obama pauses as he speaks during a memorial service for the victims and relatives of the Sandy Hook Elementary School shooting in Newtown. The White House included improving mental health services as one of 23 executive actions to combat gun violence after 26 children and adults were killed in a December shooting at Sandy Hook Elementary.