Home / Blogs / Boston Mattis' Resignation Marks A Significant Turning Point In The Trump Era Boston Mattis' Resignation Marks A Significant Turning Point In The Trump Era Dea. Ron Gray Sr. · Friday, December 21st 2018 at 8:30PM · 490 views Boston Mattis' Resignation Marks A Significant Turning Point In The Trump Era About the Author Dea. Ron Gray Sr. Chicago, IL Posts Subscribe Profile Email Report