President Barack Obama issued another impassioned plea on Tuesday for Congress to take action to curb gun violence, shedding tears as he recalled the 2012 Newtown school massacre.

"Every time I think about those kids, it gets me mad," the president said as he unveiled his executive actions on gun control.

It was an emotional moment. At other times during his presidency, Obama has teared up about the 20 children at Sandy Hook Elementary School who died at the hands of a gunman. The nation averaged more than one mass shooting a day in 2015, according to some counts.

After the president's speech, however, prominent conservatives mocked Obama for displaying his emotions about the tragedy and suggested they weren't authentic.