After the passage of Initiative 71 in November, which made small amounts of marijuana legal for adults in the nation’s capital, D.C. residents are awaiting approval from Congress when the new session resumes in January. Despite limited opposition, statements by the new chairs of two key committees are making advocates hopeful that Congress will not interfere. According to Roll Call: Rep. Jason Chaffetz, R-Utah, won a four-way contest for the Oversight and Government Reform Committee on November 18.…