There's a big black-tie dinner at the White House tonight. President Bush will don a tuxedo and might even stay up past 10. This is, as they say in Texas, rarer than hen's teeth. The dinner for Indian Prime Minister Manmohan Singh (technically an "official" instead of "state" dinner because Singh is head of government but not the state) is notable as one of the few grand parties of this administration. The White House has hosted only four state dinners since Bush took office in 2001; the last one was held in October 2003 for the president of Kenya. It's...