Hillary Clinton called out Donald Trump on Monday for using treasonous rhetoric that "[gives] aid and comfort to our adversaries." Clinton's choice of words was a direct reference to U.S. law, which says "whoever, owing allegiance to the United States, levies war against them or adheres to their enemies, giving them aid and comfort within the United States or elsewhere, is guilty of treason."
Hillary Clinton added, "We know that Donald Trump's comments have been used online for recruitment of terrorists. We've heard that from former CIA director Michael Hayden, who made it a very clear point when he said Donald Trump is being used as a recruiting sergeant for the terrorists."
Questions of Trump's allegedly treasonous rhetoric have already arisen in the 2016 race, when the Republican nominee invited Russia to hack Hillary Clinton's emails in July.