The wig test was a woman planted in the audience at one of his rallies.
On the larger scale of things though, that's irrelevant

Politicians buy and sell votes all the time in every country around the world, it's part of their trade.
This is why Hilary makes a better "politician" because she and her party know what they have to do to win an election.
Trump knows how to scam as well, but in a different way, because he is a businessman and not a politician.

And this is why he is fucking up in particular areas, to do with his past etc because he didn't prepare to cover his bases
like a honed politician. Hilary has her own questions to answer but knows how to cover up well.
Trump hasn't learnt the art of covering his ass yet, because he is playing ball in an entirely different arena;
one that he is not used to.

You don't become a multi billionaire like Trump without having business intellect
but the Clinton's have "political" intellect, a completely different trade skill
and this is why, whether you support her or not, she will win the election.