Posted this in another thread on the issue but worth saying again because most people see to be confused as to the actual implications of this ruling:
Although a gratuity or reward offered and accepted by a state or local official after the official act may be unethical or illegal under other federal, state, or local laws, the gratuity does not violate §666.
Tldr the ruling only was about in relation to one law. The party may be guilty of a form of corruption under a different law.
Read page 2 of the syllabus where it says “Held:” until page 4 if you want the shorter version.
Otherwise there’s a 16 page explanation under the “opinion of the court” section directly after the syllabus, for those who are interested in a longer explanation.