(CNN)Retired Lt. Gen. Michael Flynn, Donald Trump's pick to be national security adviser, has on several occasions peddled conspiracy theories about Islamic Sharia law coming to the United States.

Fact-checking websites, including PolitiFact and Snopes, have labeled claims about Sharia law coming to the U.S. false. In 2015, the Houston Chronicle dubbed "rumors about Sharia courts" their hoax of the year.

CNN's KFile first reported Tuesday that in a speech in August, Flynn falsely claimed that Florida Democrats voted to impose Islamic Shariah law at the state and local level. PolitiFact, which fact checked the general claim about the Florida Democrats as "pants on fire" false back in 2014, called Flynn's specific claim "wildly wrong" in a story published after CNN's report.

Shariah is a set of moral and religious principles that guide the life of Muslims.