Trump - a former Democrat, now the Republican president
Bloomberg - a former Republican, turned Independent, now running as a Democrat
Parties used to have the power, but now it seems like popular politicians are picking the party they think provides them with the easiest path to power, realigning their policy views accordingly.
The Democrats seems to have both a socdem wing and a more neoliberal wing and the Republicans a growing right wing populist wing and the standard neocons. Maybe this is oversimplified, but I feel like these should be different parties
That's the strategy being used because 3rd parties have no chance in our system. The only thing you can do is merge into one of the 2, become the new repo owner and reshape it going forward.
Trump was a registered democrat.
You can register whatever party you want as a regular citizen, but it doesn't dictate who you vote for or what you believe in or actually do.
Given other information about him, and even last debate he is the absolute weakest candidate, almost feels like he is there to spoil the election to help the incumbent.