Both leading Democrat and Republican candidates vie to show they can tackle global warming.
House Democrats consider an ethics board, and Republicans adopt reform standards.
In agreeing to stop the post-'surge' drawdown in Iraq, Defense secretary keeps pressure on the service.
The Army's multibillion-dollar modernization program, the Future Combat System, faces serious challenge this year.
Bush's budget request Monday cut funding for renewable energy, but increased spending for science.
Besides its $515 billion request, the Defense Department wants another $70 billion to cover some of next year's war operations.
Superdelegates, or party professionals, could play a decisive role in the outcome of the Democratic race.
He called Monday on lawmakers to pass a stimulus plan, health-insurance tax breaks, and education reform – while trimming pork-barrel spending.