No, there was never any evidence provided to support the claim. Trump publicly stated over, and over, and over again that it wasn't correct. The liberal media never gave evidence post any of those statements by Trump about the million dollar loan, to refute him. Then they entirely dropped the attack as a vector, obviously because they couldn't support it.

edit: I never said Marco Rubio was part of the liberal media. You're inventing that false setup. I said the liberal media, that doesn't mean Marco Rubio must belong to the liberal media if he also said x y z about Trump. Given how very heated the race was, why would it be surprising for any of the Republican competitors to latch on to the same attacks?

So in other words, there's zero evidence to support Trump inheriting a vast fortune, exactly as I said.