An advocate of partially privatizing Social Security, nominated by President Bush to become deputy director of the half-billion-dollar retirement income program, was rejected Wednesday by Senate Democrats. Senate Finance Committee Chairman Max Baucus, D-Mont., said his panel will neither consider nor hold hearings on Bush's choice of Andrew Biggs, who was an outspoken enthusiast behind the president's ill-fated plan two years ago to let people divert some of their Social Security taxes into private investment accounts. "It's a bad idea to give the No. 2 position at the Social Security Administration to someone who still supports that failed proposal," Baucus...