Mark Sternman – Chief of Staff

As Chief of Staff, Mark Sternman manages the operations of Senator Keenan’s office, in addition to working on policy, communications, and the budget. He has also worked for two other state Senators and two Members of Congress. Mark has an A.B. from Dartmouth College and an M.I.A. from Columbia University’s School of International and Public Affairs.



Doreen Bargoot – Director of Constituent Services/ Scheduler

Doreen Bargoot is the staff member who generally answers calls and greets visitors to Senator Keenan’s office. A resident of the Wollaston section of Quincy, Doreen commutes to the State House on the Red Line every day. She is a self-professed people person with a degree in Journalism from Suffolk University. She is happy to be back on Beacon Hill, this time as Constituent Services Director and Scheduler.


Morgan Simko – Legislative Director

Morgan Simko is the Legislative Director and oversees Senator Keenan’s policy priorities, the budget, and legislation in the Joint Committee on Housing. She previously served as the Communications Director in the office. She holds an MPH from Boston University School of Public Health, with a concentration in health policy and law, and has a background in relationship building, academic writing, and grassroots organizing.   


Peter Jasinski – Communications Director

In his role as Communications Director, Peter Jasinski is responsible for Senator Keenan’s online presence across social media and the office’s website, as well as handling relationships with members of the press. He previously worked as a print and online journalist for several Massachusetts-based news outlets. He has a Bachelor of Science degree in journalism from Boston University.  

Doug Newton – Legislative Aide

As Senator Keenan’s legislative aide, Doug Newton is primarily focused on assisting with constituent services, maintaining the senator’s schedule, and assisting with legislative efforts. Doug joined Senator Keenan’s office after having served as an intern for former Massachusetts state Rep. Jim Cantwell and Massachusetts U.S. Sen. Ed Markey. He graduated in 2019 from the University of Maine with a Bachelor of Arts degree in political science.