SAN FRANCISCO, CA -- Like the song goes, "something going on over there". What's happening in the New York 23rd Congressional District may have national significance. It's looking like a political earthquake in progress, and it has a San Francisco flavor to it....In San Francisco style, a Republican abandoned her own party's candidate and chose a liberal Democrat, saying it was the best choice for her district. (Recall the hundreds of San Francisco republicans who were strong early financial supporters of Democrat Mayor Gavin Newsom and his defunct run for California governor over the Republican candidate.) Didn't make much difference....