World powers continue to punish North Korea with economic sanctions, but the pressure has so far failed to push Pyongyang toward denuclearization.

Violence continues to rage more than a decade after the Mexican government launched a war against drug cartels.

The separation of powers has spawned a great deal of debate over the roles of the president and Congress in foreign affairs, as well as over the limits on their respective authorities, explains this …

Modern vice presidents can trace much of their political influence to the broad reforms that Jimmy Carter and Walter Mondale made to the second-highest elected office in the late 1970s.