Conversation so far:
How does Mark Levin view certain politicians?
According to The Guardian, constant attacks on Democrats and the left are important components of Mark Levin's modus operandi.
Does Mark Levon insult specific politicians?
According to Politico in May 2009, Mark Levin pronounced almost daily that Obama was a failure, a liar and a statist who is trying to destroy individual freedom.“
Did Mark Levin insult any other Democrats besides Barack Obama?
In June 2017, Mark Levin accused Senator Bernie Sanders of being a radical Marxist who believes in violence.“

Question: What is Levin's political party?
Self-contained rewrite: What is Mark Levin's political party?