Joaquin "El Chapo" Guzman, leader of the Sinaloa Cartel, escaped a prison in Mexico and took to Twitter to attack Donald Trump. After Trump tweeted that he could take on El Chapo, Chapo responded to him in a tweet, writing: "I will still f**king make you swallow all your f**king words, ass fu**er." See pictures of El Chapo here.
This July 10, 1993, file photo shows Mexican Joaquin Guzman Loera, aka El Chapo, at La Palma prison in Almoloya of Juarez. Guzman Loera, who escaped from prison for the first time in 2001, is part of the Sinaloa Federation and is considered by Forbes magazine as the most powerful criminal in the world. (STR/AFP/Getty)