Congress has opened an investigation into Anthem Blue Cross' impending rate increases in California as President Obama cited the premium hikes—some as high as 39%—in his bid to pass national healthcare legislation. The House Committee on Energy and Commerce and its Subcommittee on Oversight and Investigations announced they were examining the increases, which are set to take effect March 1. The subcommittee has scheduled a Feb. 24 hearing in Washington, while an Assembly committee in Sacramento has set a hearing for Feb 23, the Los Angeles Times reports.