He's a populist demagogue whose life has been largely an open book for seventy years. Never in that life has he ever espoused conservative views. Quite the contrary for the most part. He's been a lifelong hedonist and adulterer who reveled in broadcasting his sexual deeds/misdeeds and openly supported all the usual liberal social policies. His government's only accomplishment has been a big tax cut which will hugely increase the deficit. Mitch McConnell once said Trump would sign anything congress puts in front of him, and there's no evidence Trump has even contributed to anything his government has done so far other than his ranting about the need for trade tariffs - which conservatives have always opposed.
I don't think Trump even knows a thing about any political ideology. He just likes people cheering him, and that's all he's in this for. Well, along with the feeling of being a big man who can bully people.
He was
elected in the primaries by
conservatives as their choice for presidential candidate. If he's not a conservative, by whatever twisted (and wrong) reasoning you use, he sure as hell has their undying support.