And yet the gop works so hard to keep blacks from voting.
That was never true. The Voting Rights Act of 1964 (which among other things mandated bilingual ballots) was supported much more by the Republicans than it was the Democrats. With every single Democrat run Southern State voting against it. In the senate 16 Democrat Seantors voted against it compared to only 2 Republicans.
I think wallace snr ran on a dem tickeet in the 70s. It seems that anyone can run for any party they want to. Wasnt trump a dem ?
Wallace was a lifelong Democrat. And ran for President as one multiple times (originally under the American Independent Party in 1968 and won no states). In 1972 he tried again as a Democrat and won in Florida, Alabama, Tennessee, North Carolina, Texas, Maryland, and Michigan. And all of those but Maryland came under the coverage of and had monitored and supervised elections under the Voting Rights Act, which as part of his campaign he swore to overthrow as President. In 1976 he only won Alabama, Mississippi, and North Carolina.
And yes, President Trump was indeed a Democrat and a big player in the New York Democratic circles. He was a huge supporter of President Clinton as well as Senator Clinton. Simply looking at his circle of friends in New York and you saw the likes of Jessie Jackson, Al Sharpton, and the other prominent Democrats. The Clintons were both guests of honor at his wedding in 2005. as was Katie Couric, Star Jones, Barbara Walters, and others in the New York Democratic elite. None of which would look out of place at a wedding for a prominent Democrat, but all would look very out of place of say a wedding for a member of the Bush family.
And yes, for the most part anybody can run in just about any party they want. But when there is the primary system, that is where it gets interesting. The Democrats use a "Superdelegate" type system, which can and has actually seen the person who got much less votes win the nomination. This gives around 15% of the ultimate votes in a primary to the leadership of the party and in general they are really the ones that determines who actually gets to run in the election (rarely do primaries see somebody win by more than 10%). That is why Bernie Sanders twice had to bow out, because even though he was winning the popular vote, the Superdelegates were almost universally voting against him so he lost state after state that he won the popular vote in.
This is why if you look at the last century, the two political outsiders who rose to become President (Eisenhauer and Trump) were both Republicans. No Superdelegate system that ensures that only the "Approved Politicians" win the nomination. The only other was Teddy Roosevelt, who was picked to replace a deceased Vice President in President McKinley's reelection. He left in 1909 after he finished McKinley's term and one that he won on his own in 1904. But he also was very much a populist and followed the Washington Precedent of only serving two terms (his cousin was the only one to break that).
That was something that Trump was aware of, and as a political outsider he knew he never had a chance in that party of getting the nomination. However, as the Republicans do not have that kind of system the nomination is secured by popular vote and nothing else. Why do you think that even so much of the Republican Party was against him? They saw him as a "Democrat Carpetbagger" that was simply gaming the process hiding behind a cloak of populism.
Me? I am a moderate that does not hold to either party politically. But one thing I have never trusted are "Populists". They will say and do anything simply because they think that is what their voters will like, and not what is the best for the country (or even actually do when in office). George Wallace was a populist, as was Donald Trump, Ross Perot, Ron Paul, Jessie Jackson, Teddy Roosevelt, Juan Peron, Adolph Hitler, Benito Mussolini, Rodrigo Duterte, Justin Trudeau, Jean-Bertrand Aristide, Vladimir Putin, and the more recent incarnation of Daniel Ortega (he was unquestionably a hard leftist his first term but became a moderate populist later).