The unusual "resolution of disapproval," sponsored by Sen. Byron Dorgan, D-N.D., and 26 other senators, was approved by a voice vote. The measures sponsors include both Democratic candidates for president, Sens. Hillary Rodham Clinton of New York and Barack Obama of Illinois.

The House is also considering a nullification of the ownership rule, but even if supporters are successful, the measure would likely be rejected by President Bush.

Commerce Committee Chairman Daniel Inouye, D-Hawaii opposed the FCC's action.

"In recent years, we have seen an increase in coarse and violent programming, coupled with a decrease in local news and hard-hitting journalism," Inouye said Thursday night. "To say these trends are not in the best interest of the American people, and especially our youngest citizens, is clearly an understatement."

Obama issued a statement supporting the vote.