The lawsuits argue that the 14th Amendment to the U.S. Constitution guarantees citizenship for people born and naturalized in the U.S.

One of Trump's executive orders moves to end birthright citizenship, a right enshrined in the Constitution. Here's what you need to know about the legal principle and its possible future.

President Trump's team offered its first defense of an executive order on birthright citizenship, telling a federal court that children whose parents aren't citizens are "not subject to" American ...