We might end up with 3 parties, we might end up with the Republicans losing many members.
(Probably) not without a change to the constitution.
Either way, unless the Democrats shoot themselves in the face they're going to be the dominant party for a while.
Maybe, but seeming political disarray has a habit of disappearing quickly due to the median voter theorem in action.
In 2008, democrats had a supermajority and the republican brand was in the toilet. In 2010, the democratic brand was trashed, they lost the house and probably would have lost the Senate if the Tea Party hadn't supported some amazingly bad candidates in two key races. All this despite no real surprises, the democrats did what they said they would do in their election platform and the economy in november 2010 was no real surprise given how things were in november 2008.
An even starker contrast is available if we go back to 1856. Then the democrats were utterly dominant, the Whig party had collapsed and the Free Soilers had nominated a political neophyte without a prayer of winning. Four years later the democratic party had split in two and had put in motion secession so convinced were they that their political cause was hopeless. A party that hadn't existed in 1856 would go on to win the presidency for the next 24 years straight.
So even if the republicans nominated trump and had a major third party challenge, dont expect this to tell us a lot about how things will look in 2018 or 2020.
Helgo für Kanzler!
Putting the fire back in Germany's ovens!
Oh, is Germany making good use of clean burning biofuels as an energy source? I thought Germany was mostly deforested these days.