Who Should Interpret Our Statutes and How It Affects Our Separation of Powers By The Honorable Carlos T. Bea

"As I discussed at the outset, the Constitution tells Congress that it must exercise its legislative power through the Presentment Clause. Both houses of Congress must agree on the statute’s language, but both houses do not have to agree on what the “intent” of the bill is. Senators and representatives can and do have different views on how a statute will operate in practice."

http://www.heritage.org/research/reports/2016/02/who-should-interpret-our-statutes-and-how-it-affects-our-separation-of-powers