Rep. Steve Scalise (R-LA, pictured), the chairman of the RSC, asked for Teller's resignation, according to Politico on Wednesday. The RSC serves as the policy group for roughly 170 conservative members in the House.
A senior GOP aide said that Teller had been "divulging private, member level conversations and actively working against strategies developed by the RSC members."
Teller's firing is also notable given that when Scalise took the reigns of the RSC in 2012 he decided to keep Teller as executive director.
This post was updated.