!--StartFragment-->

Arizona Sen. John McCain said Democratic presidential candidate Sen. Bernie Sanders must have been "consuming" marijuana when he said climate change is the nation's top national security threat.

The Vermont independent, citing the Department of Defense and the Central Intelligence Agency, has said multiple times on the campaign trail that he believes climate change is the country's top national security threat. He made the remark during October's first Democratic presidential primary debate, and during Saturday's debate said climate change is exacerbating terrorism.

Read more on WashingtonExaminer.com