Jon Lieber, Managing Director of the United States for the Eurasia Group, shares his insights on US politics this week:

Why are members of the Republican party, like Senator Mitch McConnell, hesitant to congratulate President Elect Biden?

Well, the reason is, is that President Trump hasn't conceded yet, and they're not going to admit this election is over until either the President concedes, or it becomes really a mathematical certainty that Biden will be inaugurated on January 20th of next year. There's currently a recount going on in Georgia right now. Pennsylvania is still looking at the issue of late arriving mail-in ballots, and in Michigan and other places, the Republican party, and particularly the Trump campaign is alleging campaign fraud. All these things have to work their way through the court. None of the elected Republican leaders want to be the ones who tell the President that he's lost, to end this journey. They want the courts to have that role. Once that process is done, I expect you're going to see a transition of power starting in January, but it could take until the electoral college meets on December 14th, for that to become official, and Republicans to start saying, "You know what Mr. Trump? You don't have much of a shot here. Let's back down."