The National Republican Congressional Committee quietly blacklisted Jamestown Associates, a Republican consulting firm, for helping outside groups like the Senate Conservatives Fund, the National Journal reported Wednesday.
A senior GOP official confirmed National Journal's report.
The NRCC blacklisted the firm around the same time as its Senate counterpart, the National Republican Senatorial Committee (NRSC). Unlike with the NRSC, however, the NRCC kept its blacklisting of the firm quiet.
National Journal also reported that the NRCC is telling Republican House campaigns to not work with Jamestown. The blacklisting cuts Jamestown off from major sources of revenue, and House campaigns joining the boycott could deal a big blow to the firm.
The move is part of establishment Republicans' efforts to tame outside conservative groups seeking to oust top Republican lawmakers who they deem as insufficiently conservative.
Senate Minority Leader Mitch McConnell (R-KY) has taken steps to fight back against SCF and other conservative outside groups who have targeted him and other Republican lawmakers. McConnell has warned Nebraska Senate candidate Ben Sasse to stop associating with SCF and in the report about the NRSC severing its ties with Jamestown, a top McConnell aide compared SCF to "a drunk who tears up every bar they walk into."
Shutterstock / Michael Wick
This post was updated.