Foreign policy is dominating U.S. political discourse for the first time in years. This backgrounder looks at the leading schools of foreign-policy thought on both sides of the political aisle.

China’s growing military capabilities pose a concern for U.S. security interests. Experts say the United States must push for greater engagement with China’s military to reduce the potential for misu…

A possible transfer of political power in the congressional midterm elections could doom short-term chances for a comprehensive climate bill. But experts say climate issues could still be addressed t…

Party caucuses, which date to the 1800s, have declined in importance but they could be decisive in choosing the 2008 Democratic presidential candidate.