One of the many executive orders President Donald Trump signed on Monday included one to end birthright citizenship. Here's what to know about it and why lawsuits have already been filed.

The president issued several actions related to the border or immigration, including ramping up deportations and suspending refugee resettlement.

Donald Trump is trying to redefine who is allowed to be a U.S. citizen. On the first day of his presidency, Trump signed an order challenging a long-standing constitutional right that people born inside the U.

President Donald Trump has moved to end a decades-old immigration policy known as birthright citizenship, ordering the cancellation of the constitutional guarantee that U.S.

WASHINGTON — President Donald Trump’s bid to restrict birthright citizenship could have significant repercussions for Texas and other border states that have large numbers of immigrants in the country legally and illegally.

The executive order restricts automatic citizenship for babies born to parents who aren't citizens or lawful, permanent residents.

"We think we have really good grounds," the president said of the order, which has already been challenged in federal court.

Nevada Attorney General Aaron Ford is joining 21 other state attorneys general in suing to block an executive order from President Donald Trump that would end birthright citizenship in the United States

"Birthright citizenship in our country is a guarantee of equality, born out of a collective fight against oppression," Attorney General Andrea J. Campbell said in a statement.

President Trump promised Monday to take aggressive action to curb the number of undocumented migrants in the US, and one of the bigger initiatives revolves around what's known as birthright citizenship.