The United States is broken, but not in every way.

The president urged Representative Julia Letlow of Louisiana to run against Mr. Cassidy, in a move that is likely to further complicate his relationship with Senate Republicans.

Spotty research from a Christian activist has been used by Republican lawmakers to justify U.S. intervention in the country.

Videos of immigration officers dragging an employee out of a store near Minneapolis, the retailer’s hometown, set off renewed political debate after years of boycotts.