Federal Communications Commission Chairman Julius Genachowski is leaving the agency and will announce his departure today, Bloomberg reports.

The departure of Genachowski, a Democrat, means there will be two vacancies on the five-member U.S. agency that oversees cable, broadcast and telephone regulations, the story points out.

President Obama "could elevate either of the agency’s two Democrats, or name a chairman from two new members who will need Senate confirmation," the story notes, adding that there won’t be an announcement about Genachowski’s replacement today.

His resignation comes after Republican Robert McDowell, the longest-serving current commissioner, said earlier this week that he’s stepping down, as we reported previously.

The article notes: "Genachowski’s focus on expanding access to high-speed wireless Internet service, or mobile broadband, broke with some priorities of his predecessors. His FCC levied no fines for broadcast indecency, after a flurry of penalties under Republican chairmen from 2003 to 2008, and he didn’t complete a loosening of media-ownership rules."