A House GOP source has confirmed to Breitbart News that House Majority Whip Kevin McCarthy was the one who drafted the secret criteria list House Speaker John Boehner used in his purge of conservatives from House committees.

The source, someone with inside knowledge of how Boehner conducted the purge, told Breitbart News that McCarthy crafted the list, which included a scorecard of where several conservative members stood on certain votes. According to the source, it’s unclear at this time whether McCarthy made the list of his own accord or if he did so at the request of somebody else in GOP leadership – like Boehner or House Majority Leader Eric Cantor.