Mexican President Felipe Calderón’s state visit to Washington could highlight immigration concerns at a time of growing cross-border partnership on Mexico’s drug war, says CFR’s Shannon O’Neil.

An interim nuclear accord between Iran and world powers is still within reach despite lingering disagreements over details, says expert Barbara Slavin.

European affairs analyst William Drozdiak says Barack Obama’s administration will lead Washington to demand from Europe more troops for Afghanistan, a coordinated economic stimulus package, and help …

In the wake of the Gulf spill, the United States should craft regional pacts with its neighbors to address pollution and liability issues arising from ever deeper oil and gas exploration, says expert…