Posted on Thu, Mar. 06, 2003 Boxer calls for investigation into California gas price spike ANDREW BRIDGES Associated Press LOS ANGELES - Sen. Barbara Boxer called Thursday for a federal investigation into California's soaring gasoline prices amid concerns the market is being manipulated in ways reminiscent of the power crisis that convulsed the state two years ago. In a letter to U.S. Comptroller General David M. Walker, the California Democrat asked the General Accounting Office to look at news reports that oil companies are taking more refineries than normal off line for maintenance. Such a move presumably would curtail the...