FCC Chairman Kevin Martin is pushing forward with plans for the Commission to vote on Tuesday regarding media cross-ownership rules, despite pressure from Congress and his own board.

On Wednesday, Michael Copps and Jonathan Adelstein – two Democratic commissioners on the FCC board – issued a release saying that Martin’s intent to relax media cross-ownership rules is “a huge mistake.”

Martin’s proposal would open the top 20 U.S. markets to potential media cross-ownership, with no waivers required. Martin is also proposing to cap the size of cable operators to no more than a 30 percent share of all U.S. multichannel video subscribers.

According to published reports, Senate Commerce Committee Chairman Daniel Inouye wants an overhaul of the FCC to occur next year, which could include modifications to the terms of commissioners. And Sen. Jay Rockefeller said that the FCC is more concerned with policies that suit the companies the Commission regulates than it is with serving the best interests of the public. Both senators’ comments were made at the committee’s oversight hearing on Thursday.