After a gunman opened fire at a Florida high school, killing 17 people, US Representative Seth Moulton tweeted that President Trump should “get off his ass’’ when it comes to gun control.

After the harrowing incident, Trump tweeted: “No child, teacher or anyone else should ever feel unsafe in an American school.’’

My prayers and condolences to the families of the victims of the terrible Florida shooting. No child, teacher or anyone else should ever feel unsafe in an American school. — Donald J. Trump (@realDonaldTrump) February 14, 2018