On March 13, 2006, The McClatchy Company purchased Knight Ridder for $. In a surprise move, McClatchy immediately put the "Mercury News" and 11 other newspapers back up for sale. The resale of the "Mercury News" was rumored to be due to strong union representation at the paper. On April 26, Denver-based MediaNews Group (now Digital First Media) announced a planned $ purchase of the "Mercury News", two other California newspapers, and the "St. Paul Pioneer Press", with the three California papers to be added to the California Newspapers Partnership (CNP). However, on June 12, 2006, federal regulators from the U.S. Department of Justice asked for more time to review the purchase, citing possible antitrust concerns over MediaNews' ownership of other newspapers in the region.