Is the president's war against ISIS illegal?
Senator Rand Paul believes it is. The Kentucky Republican, who is eyeing a presidential run, wrote an op-ed in The Daily Beast, saying: "...this war is now illegal. It must be declared and made valid, or it must be ended. Congress has a duty to act, one way or the other."
OutFront, Elise Jordan, who is advising Senator Paul on foreign policy issues and Lanny Davis, former White House special counsel in the Clinton administration.
Republicans made history on election night, beyond taking control of the Senate. Voters elected a slate of younger, more diverse Republican candidates that include some major historic firsts.
Thirty-year-old Elise Stefanik is the youngest woman ever elected to Congress from either party. Tom Cotton is the first Iraq War and the first Afghanistan war veteran to be elected to the Senate.
This new tidal wave of Republicans will also include several presidential contenders who bring their own agendas to the Hill.
In an interview with CNN's Erin Burnett, Republican Senator Tim Scott of South Carolina says his election was "one of the most remarkable experiences of my life."
One day after Republicans scored huge gains in the U.S. Senate and the House, President Obama gave a lengthy press conference and signaled he wants to work with the new Congress, but he also made it clear that if Congress didn't act quickly, he will and without their approval.
"I am eager to see what they have to offer but what I am not going to do is wait," Obama said in his first public remarks since the election. "Let's see what we can do lawfully through executive actions."
Senator Mitch McConnell, the presumptive majority leader promised cooperation, but he had a stern lecture for the president.
"Because of the strength of the veto pen, he could probably stay on the course he's on," McConnell said Wednesday.
With gridlock looking as locked in place as ever, what do Republicans need to do to make sure they don't lose their momentum and their chances for the White House in 2016.
In an interview with CNN's Erin Burnett, Chairman for the Republican National Committee, Reince Priebus says his party's election victory wasn't just based on a repudiation of the President's policies, but also an "acceptance of Republican policies and governance."
On Tuesday, voters in two states and Washington D.C. will decide if they want to go the way of Washington and Colorado and legalize recreational pot.
And in Florida, medical marijuana will be on the ballot. But pot advocates in that state weren't expecting a multi-million dollar campaign against them. Marijuana could swing the deadlocked race for governor in the sunshine state.
CNN's Athena Jones is OutFront with the money and power of pot on the ballot.
Just a day before the election day, the control of the U.S. Senate hangs in the balance. Ten key states are up for grabs. The polls in most of those key races are too close to call.
Republicans only need to pick up six seats to gain control of the Senate. And according to recent polls, three are likely to be in their win column.
Republicans have history on their side, since FDR was in the White House, the president's party has lost an average of 6 Senate seats in the president's sixth year in the White House.
Despite all the talk of Democrats versus Republicans, it is third-party candidates that could make all the difference on election night.
In Kansas, Democrats could actually steal a seat for the GOP. Independent candidate Greg Orman is in a statistical dead heat with the Republican incumbent Senator Pat Roberts.
Jim Sciutto is in Kansas City with the latest.