Senator Lincoln wants to stop big banks' risky derivative trades from being subsidized by taxpayers. Here's how to keep her measure in the financial reform bill.
Rep. Parker Griffith of Alabama announced Tuesday he is switching parties. That could put pressure on other conservative Democrats, especially in the Deep South, to jump ship.
The delegate math still favors Obama despite her better than 2-to-1 victory Tuesday.
House Republicans lose a third seat in special elections, as voters signal desire for change.
GOP leaders urge a new agenda after several key losses.