He did not pass the background check because he claimed to co-found Tesla. Here: https://www.tesla.com/elon-musk -- "Elon Musk co-founded and leads Tesla"
But actually he wasn't a co-founder. He simply bought shares of Tesla 1 year after it was founded.
This is the red flag, so he failed the background check.
>A lawsuit settlement agreed to by Eberhard and Tesla in September 2009 allows all five – Eberhard, Tarpenning, Wright, Musk, and Straubel – to call themselves co-founders.[15]
But actually he wasn't a co-founder. He simply bought shares of Tesla 1 year after it was founded.
This is the red flag, so he failed the background check.
True story.