If anything, the core of Trump's campaign has remain consistent for 30 years
It's straight from the Playbook of the Reform Party for which he also ran for president ( you'll note the 2000 election in which he left the party because of religious Focus and also this is when he first disavowed David Duke and also when he first stated that he would have no problem with gay soldiers openly serving (remember Trump is a racist fascist! Who happens to be more progressive on social issues than several Democrats.)
Trump was progressive on social issues, and supported allowing openly gay soldiers in the military, saying: "it would not disturb me."[6] Trump considered himself a conservative, but criticized Pat Buchanan, saying: "I'm on the conservative side, but Buchanan is Attila the Hun."[7] He withdrew from the race citing the party's infighting,[8] as did Jesse Ventura and the Minnesota Reform Party. Donald Trump stated: "So the Reform Party now includes a Klansman, Mr. Duke, a neo-Nazi, Mr. Buchanan, and a communist, Ms. Fulani. This is not company I wish to keep."[9][10] "Mr. Duke" was a reference to David Duke, a former leader of the Ku Klux Klan.
Platforms:
The only change has been that he now says gay marriage should be up to the states instead of being a vocal supporter of ( some, including myself have noted that this is the same position or even more liberal than 2012 Barack Obama. It is also a legal support of the status quo and which gay marriage is legal since there's now a Supreme Court decision that would override such a move).
He's also moved towards being pro-life instead of pro-choice on abortion, sitting that while he continues to be an advocate for the remainder Planned Parenthood Servic aes as he always has he has changed his mind on abortion.
The social issues, including his want for homosexuals to earn protected status as part of the Civil Rights Act, are not part of the reform platform. Intentionally the reform platform rejected these social issues until Pat Buchanan came along.
So with that said I would say that the core of his platform remains a Reform Party candidate that managed to get himself on the Republican ticket. Given the focus he has had and that the Reform Party has always had on Election reform this is pretty huge.