The Justice Department has asked the court to decide whether the Trump administration can dismantle the Deferred Action for Childhood Arrivals program — without waiting for rulings from lower courts.
There are dozens of competitive races across the country that will determine control of the House, Senate and governors' seats. Here are the pivotal seats that could unlock what happens.
In August, Incumbent GOP Rep. Duncan Hunter was indicted on charges of using campaign funds for personal expenses. Now he's facing a challenge from Democrat Ammar Campa-Najjar.
California has a number of key House races to watch on Election Day. Rep. Dana Rohrabacher is one of several Republicans trying to keep seats in districts that went to Hillary Clinton in 2016.
GOP Sen. Jeff Flake's retirement has set the stage for a showdown in Arizona. Republican Martha McSally and Democrat Kyrsten Sinema are neck and neck, according to recent polls.
Democratic Sen. Claire McCaskill is fighting to keep her seat. She's facing a challenge from Republican Josh Hawley, who is the state's attorney general and is closely aligned with President Trump.
The gubernatorial race has captured national attention. President Trump and former President Obama have visited the state to rally on behalf of Democrat Stacey Abrams and Republican Brian Kemp.