Why is the GOP Majority Whip Calling Rep Massie a "Libertarian Anarchist"? & J6

The House GOP Majority Whip - Tom Emmer from Minnesota - recently called Kentucky Rep Thomas Massie a "libertarian anarchist" in passing.

Why would the majority whip use hate speech against one of the most principled members of the House of Representatives and a person in his own party?

What has Massie done that could possibly warrant a label that more aptly applies to sellouts in the GOP and Democratic leadership (look what they did on J6)?