Actually, it should be sent to their re-election campaign committees; legislators themselves are considered members of the government, and would not be considered businesses in their own right. Whereas their campaign comittees are heavily regulated businesses that get lots of financial scrutiny and are very short of cash usually.

Although that is a dangerous precedent to set; once you start using that sort of tactic, it will become yet another way for big business to lock out candidates they don't like and would have an overall chilling effect on participation in the political process.