President Trump is seeking to end birthright citizenship in the United States. What is it, which other countries apply the policy and who would be affected by the order?

In total, 22 states, including Massachusetts, as well as other organizations, have sued to try to stop the birthright citizenship order.

A federal judge in Boston will consider a request from 18 states to block President Donald Trump’s executive order ending birthright citizenship for the children of parents who are in the U.S. illegal