Maggie has spent the past decade working in legal and policy positions in each branch of the federal government and in both houses of Congress.  

Most recently, she served as counsel for the House Judiciary Committee during the impeachment and Senate trial of President Donald Trump.  She also worked in the Senate from 2009 to 2013 as an advisor for foreign affairs and national security to Senator Joseph Lieberman and as a senior advisor to Senator John McCain responsible for assisting with the drafting and legislative strategy for the Border Security, Economic Opportunity, and Immigration Modernization Act of 2013 (S. 744).

After graduating from Yale Law School in 2016, Maggie worked as a law clerk to Chief Judge Merrick Garland of the U.S. Court of Appeals for the D.C. Circuit (2016-2017) and U.S. Supreme Justice Stephen Breyer (2017-2018).

She is a lieutenant in the U.S. Navy Reserve and an adjunct professor of constitutional law and administrative law at the University of New Hampshire School of Law.