In 2013, Zinke hosted a radio show in which he engaged with and promoted fringe conspiratorial views, including birtherism (the false belief that Barack Obama was not born in the United States). Zinke said on the radio show that he was not sure whether Obama was a foreign citizen and called on Obama to release his college transcripts. Later, in 2016, as a congressman, Zinke appeared on the radio show Where's Obama's Birth Certificate, known for its promotion of birther conspiracy theories.[37]