In 2009, the Fellowship received media attention in connection with three Republicans politician members who reportedly engaged in extra-marital affairs. Two of them, Senator John Ensign, and South Carolina Governor Mark Sanford, were considering running for President in 2012. The affairs of Ensign and then-Congressman Chip Pickering, R-Miss, took place while they were living at the C Street Center.
C Street has been the subject of controversy over its claimed tax status as a church, the ownership of the property and its connection to the Fellowship, and the reportedly subsidized benefits the facility provides to members of Congress. Until 2009, C-Street was exempt from real property taxes. When it was revealed that rooms were being rented out as residencies, the exemption was amended to 34% exempt. Soon it was revealed that the Fellowship had no control over C-Street. Mainstream Christian Pastors filed a petition to revoke C Street's remaining tax exemption due to its secretiveness on the grounds that it is not a religious institute. Further investigations show that C Street charges its Capitol Hill residents rent that is well below market price for more tax breaks.