It will be quite the bipartisan ribbon-cutting in Stockton on Friday, as former Fresno-area state legislator Bill Jones opens the state's largest ethanol facility. Jones, of course, is 100 percent Republican, a former state senator and secretary of state who has had statewide aspirations. Now, he is chairman of Pacific Ethanol, Inc. Joining Jones at the 10 a.m. opening will be Democratic Rep. Jerry McNerney of Pleasanton, now seeking reelection in what may be California's most competitive congressional race. McNerney's Republican opponent, Dean Andal, is not on the publicized guest list -- incumbency doth have its advantages. Kevin Herglotz, who once flacked for former Agriculture Secretary (and Modesto native) Ann Veneman, advises that the Stockton plant will process two million bushels of corn a year.