Presidential hopefuls clash on gun control, immigration and the Middle East at the Democratic debate. SUBSCRIBE to ABC NEWS: .\r<br>\r<br>Presidential hopefuls clash on gun control, immigration and the Middle East at the Democratic debate. SUBSCRIBE to ABC NEWS: . Make ABC News your daily .\r<br>\r<br>Five candidates participated in the first Democratic presidential primary debate on Tuesday. CNNs Anderson Cooper moderated the debate at the Wynn Resort .\r<br>\r<br>Make ABC News your daily news outlet for breaking national and world news, broadcast video coverage, and exclusive interviews that will help you stay up to .
