The issue focused on "the rights of law enforcement to conduct criminal investigations in accordance with the laws and Constitution of the United States."

Habeas corpus is a legal right that allows people who are being held against their will to ask for an attorney. It's been used by federal courts to hold political prisoners, whether they were illegal immigrants or American citizens. The Supreme Court has already ruled that political prisoners have the right to court-appointed lawyers.

In 2014, however, the court found that President