The Democrats actually managed it back after the Great Depression. Three terms of Franklin Delano Roosevelt followed by one of Harry Truman.
So really, it's just uncommon in the last sixty-odd years.
The problem with that analysis in this particular case is that it is an attempt to normalise what is a fundamentally abnormal election (which is what a lot of people unfamiliar with the historical and current European and international politics generally are guilty of doing through ignorance). This wasn't a normal change of the guards, and is part of a trend that we are seeing across the world. A charisma candidate that is frankly unsuited for office, with almost no real institutional support from any recognisable political peers, and a disdain for the norms of liberal democracy just beat in a head to head contest a candidate that is fundamentally a normal, if flawed, candidate.
You know she lost right?
Sure, we do. It's easy. Just look at someone's actions and ignore what they say.
Trump's entire career very clearly about making things better for Trump. Simple extrapolation indicates that's what his presidency is going to be about too.
If you happen to be like Trump -- a wealthy US business owner -- you may get some improvement in your life as a sort of halo effect. But otherwise, a Trump presidency is good news for no one whose name doesn't rhyme with "Ronald Rump".
I seem to recall at least a few threads on HN over the past couple of years that suggested politics needs to be more agile.
When I say institutions I mean the political institutions that support and enforce the norms liberal democracy which make the key difference between say Russia and Egypt vs the US or France as models of democracy, specifically in these cases of presidential democracies.
Are you referring solely to the economic situation with the housing bubble?
At a time of greatest institutional weakness, a demagogue with authoritarian tendencies that considers the norms of a liberal democracy to be a inconvenience and subordinate to the needs of order has just been elected on a wave of hate, lies, racism, and bigotry with the promise of locking up his political opponents and abandoning international allies and obligations.
This is potentially a game changer from which there is no return and everyone is a loser.