Other people have pointed out that this specific thing didn't happen. More generally: I worked in policy around money in politics for five years. It's every campaign finance reporter or researcher's dream to find this kind of direct campaign contribution quid pro quo. We never do, because this basically doesn't ever happen. Campaign contribution limits are too low for any single donor to really make the difference either way, and to the extent that rich people contribute, they tend overwhelmingly to contribute to candidates already sympathetic to their issues in the hopes that they'll win, rather than to candidates not sympathetic to their issues in the hopes that they'll change sides. The avenue that actually moves policy is lobbying, which attracts about ten times as much spending per year at the federal level. Almost nobody writes about it though, because the disclosure requirements are so lax that it's usually impossible to piece together a story about it.