On February 2, 1848 the Treaty of Guadalupe Hidalgo was signed in Mexico without President James K. Polk’s knowledge. The United States acquired about 55 percent of Mexico’s territory for $15 million.
President Donald Trump’s constitutional objections to a Russia sanctions bill he signed on Wednesday have raised some old arguments about foreign policy power sharing within the federal government.
On March 10, 1848, the Senate approved a treaty that led to California and much of the Southwest joining the United States. But the man who negotiated the Treaty of Guadalupe Hidalgo was promptly fired on his return to Washington.
A look back at "one of the most significant tributes that Power has ever paid to Reason."
On August 12, 1898, the United States and Spain reached a cease-fire agreement in its brief conflict over Cuba and the Philippines. The war marked America’s entrance onto the global stage as a military power.
Japan is on the brink of making the most significant amendment to its constitution since the charter first went into effect on May 3, 1947.
In this commentary, Jean Galbraith of the University of Pennsylvania Law School explains how the Constitution and other forces constrain the President in foreign affairs.
With more than two dozen governors objecting to a federal government plan to accept Syrian refugees, a spotlight has been placed on how the Constitution deals with these matters.
In this commentary, American University's Chris Edeldson says it would be a mistake to make decisions about ISIS based on fear, including the decision that any one President can or should take on this problem single-handedly.
Oona Hathaway of Yale Law School and Michael Paulsen of the University of St. Thomas School of Law debate whether foreign laws or international agreements have a role in interpreting the U.S. Constitution.