Lynn Malerba, chief of the Mohegan Tribe, made history Monday when she took an oath of office as the nation’s 45th treasurer ― the first Native American to hold the office ― in a live-streamed …Lynn Malerba, chief of the Mohegan Tribe, made history Monday when she took an oath of office as the nation’s 45th treasurer ― the first Native American to hold the office ― in a live-streamed …