(FILES) This file photo taken on June 12, 2016 shows US President Barack Obama turning to leave after making a statement on the mass shooting at an Orlando, Florida nightclub in the White House Briefing Room in Washington, DC. The White House on June 21, 2016 denounced the "cowardice" of US senators who failed to pass gun control legislation taken up following the Orlando nightclub massacre. Four bills -- two proposed by Republicans and two by Democrats -- went down to defeat in the US Senate late Monday. / AFP PHOTO / YURI GRIPASYURI GRIPAS/AFP/Getty Images