A federal district judge on Monday dismissed the Federal Trade Commission's antitrust complaint alleging Facebook engaged in anticompetitive practices.

Driving the news: The D.C. Court judge described the FTC's complaint as "legally insufficient" in making the case that Facebook has monopoly power in the personal social network market.

What's next: The order notes the FTC can refile its complaint.

• Facebook is also facing an antitrust lawsuit brought by state attorneys general.