Supervisor Chris Daly, the sworn enemy of gentrification in the city, announced Wednesday that he has bought a house in the suburb of Fairfield and has moved his wife and two children there. The revelation brought out his critics, who highlighted the extreme irony of him falling victim to his own legislative efforts to encourage the building of low-income housing at the expense of middle-class housing. Daly, who was 28 when he was elected to the board in 2000, has been in the vanguard of far-left politics since he arrived from Maryland in 1993. He has opposed legislation that would...