In hearing a challenge to Barack Obama's plan to shield as many as five million people from deportation, the Supreme Court will determine whether he overstepped his authority in enacting a sweeping immigration overhaul without congressional approval.
What to know about the president's push to require everyone "engaged in the business" of selling guns to register as a firearms dealer.
Presidents can't invent new laws, but they can tweak enforcement.
Undocumented LGBT migrants often don’t have the family ties that are protected under the new legislation, in part because some states won't recognize gay marriage or adoption.
President Obama announced executive action that will shield millions of undocumented immigrants from deportation without the approval of Congress.