SAN FRANCISCO - New Mexico Gov. Bill Richardson, often mentioned as a possible Democratic presidential candidate, said Monday his party must reconnect with voters' core values if it hopes to regain congressional seats and perhaps even the presidency. Partisan fights in the nation's capital must be replaced with policy proposals that strike at the heart of voters' most pressing concerns, such as health care costs and education, he said during a speech at the annual meeting of The Associated Press. "We just can't be negative. We can't just attack the president at every turn," he said. "We have got to...