Trump is seemingly going back on just about every promise he made. Chief among them, after assuring the electorate that he will rock the establishment in Washington it now looks like, if his appointments are any indication, that he is going to be an even bigger proponent of the monied establishment than Hillary would have been.
Were Conservatives suckered?
I don't think it's so much "suckered" as a matter of selective hearing and wishful thinking.
Trump didn't really do much to hide his true self: a habitual liar and opportunist that makes Clinton seem like a straight shooter, a business tycoon only interested in whatever gives him money and power, and the classic "not my fault" type who scapegoats entire segments of the population instead of accepting the complex reality.
The problem is, many voters didn't want see him that way. They confused brash lying for "tells it like it is" (hint: angry and crude is not the same as truthful); they convinced themselves that a billionaire was a rebel outsider simply because he didn't need as much campaign fundraising; and of course, some of them let him prey on their fears of brown people.
Some of it would've been hard to escape, though. There's a partly irrational hatred of Clinton that played a part, but it's also evident that a lot of Republican supporters vote along party lines even when large chunks of their party are raising alarm bells. It's amusing to see Christian groups rally behind a man who cheated on two wives, has a history of sexual harassment and regularly insults anyone who disagrees with him.
Oh, and imported: Trump explicitly, repeatedly vowed legal action against Clinton if he won, and he's backtracking. He broke a promise. Cowards pretend he didn't make the promise; brave people accept that he did and deal with the ramifications, wherever they sit on the political spectrum.