Republican National Committee Chairman Reince Priebus sent a strongly worded letter to the heads of CNN and NBC Monday warning them that if they went forward with planned Hillary Clinton programs that the RNC would not partner with them on primary debates. The letter was sent to Robert Greenblatt, chairman of NBC entertainment, and Jeff Zucker, president of CNN Worldwide, respectively.

Priebus said he would seek a vote from the Committee members at their Aug. 14 summer meeting, saying the RNC would not partner with both networks on debates. The 2012 Republican primary featured more than 20 debates.

"It's appalling to know executives at major networks like NBC and CNN who have donated to Democrats and Hillary Clinton have taken it upon themselves to be Hillary Clinton's campaign operatives," Priebus said in a statement. "Their actions to promote Secretary Clinton are disturbing and disappointing. I hope Americans will question the credibility of these networks and that NBC and CNN will reconsider their partisan actions and cancel these political ads masked as unbiased entertainment. If they have not agreed to pull this programming prior to the start of the RNC's Summer Meeting on August 14, I will seek a binding vote stating that the RNC will neither partner with these networks in 2016 primary debates nor sanction primary debates they sponsor."

CNN announced last Tuesday it was producing a documentary about Clinton. NBC similarly recently announced it was producing a miniseries on the former secretary of state.

"NBC News is completely independent of NBC Entertainment and has no involvement in this project," NBC responded in a statement.

The letters to CNN and NBC have been posted below.