With incumbent Pennsylvania senator Pat Toomey's successful in fending off challenges, and incumbent Lisa Murkowski regaining Alaska's Senate seat, the Republicans have retained control of the Senate.
That would leave Republicans controlling the House, the Senate, and the Presidency, meaning that Obamacare is over... and perhaps the 4-4 Supreme Court too.
Republicans win PA Senate race, giving them enough seats to retain control of chamber in new Congress and overcoming odds that had looked stacked against the party.
Both sides poured tens of millions into Pennsylvania as the battle for the upper chamber tightened, making it the most expensive Senate race in the country, according to Open Secrets.
Outside groups spent nearly $118 million, with both sides spending more than a combined $13 million on ads in the final week.
Republicans also held tightly contested seats in Ohio, Indiana, Florida and North Carolina.