For pork-barreling, there is (or could be, it is not yet the law on the federal level) https://en.wikipedia.org/wiki/Single-subject_rule https://en.wikipedia.or

For pork-barreling, there is (or could be, it is not yet the law on the federal level) https://en.wikipedia.org/wiki/Single-subject_rule https://en.wikipedia.org/wiki/Single-subject_rule