"In light of the facts uncovered, it would be difficult to establish that, even assuming (Mr.) Bush possessed material nonpublic information, he acted with sentience or intent to defraud".
"...it would be difficult to establish that..."
"...it would be difficult to establish that..."
That means the SEC didn't have enough EVIDENCE to prosecute. It doesn't mean he wasn't guilty.
"W" was known to have consulted with officers inside the company and people outside the company when he sold the stock, but, it didn't add up to enough for prosecution.