SACRAMENTO, Calif. (AP) — A federal judge has blocked a $6.2 billion merger of local television giants Nexstar Media Group and rival Tegna until an antitrust lawsuit is resolved. U.S. District Court Chief Judge Troy L. Nunley made the ruling late Friday, noting that attorneys general from eight states and DirecTV are likely to succeed in their efforts to stop the merger. The deal, which gained FCC approval last year, would have created a powerhouse with 265 TV stations across the U.S., dominating many local markets. The attorneys general argue that the merger could lead to inflated prices for viewers and curtail local journalism. Nexstar defends the merger, asserting it's committed to expanding local news coverage.