REUTERS/Carlos Barria
"Every time I think about those kids, it gets me mad," Obama said as tears slid down his face. "And by the way, it happens on the streets of Chicago every day."
Obama was in the middle of an emotional speech at the White House, in which he unveiled his new executive action that he said would help curb gun violence.
But Obama was hardly the first world leader to cry in public.
On Wednesday, Reuters published the following package of photos featuring other politicians tearing up, including Russian President Vladimir Putin and North Korean Supreme Leader Kim Jong-un.