People / Cameron C. O'Brien

Person · Senate

Cameron C.
O'Brien

PROFESSIONAL STAFF MEMBEROffice of the Senate Republican Leader

Legislative professional with over 12 years of experience in legislative affairs and policy development in the United States Senate. Began career with Senator Susan Collins as intern and Legislative Correspondent, later serving as Professional Staff Member on the Senate Appropriations Committee Transportation, Housing and Urban Development Subcommittee. Subsequently held the position of Legislative Director at the United States Senate with responsibility for managing legislative priorities and policy initiatives. Focus on transportation and infrastructure policy, with expertise in legislative strategy and bipartisan collaboration.

Last year's salary

$64,049

Calendar year 2025

Career tenure

14.4y

6 roles tracked

Sponsored trips

0

$0 total

Career earnings

$841,145

Chapter I

Compensation Timeline

Summed annual salary across all tracked roles.

Preparing salary timeline...

Chapter II

Employment History

Roles are merged across compensation filings.

PROFESSIONAL STAFF MEMBER
Senate
Jun 10, 2022 to Present
LEGISLATIVE ASSISTANT
Senate
Oct 30, 2017 to Jun 9, 2022
LEGISLATIVE CORRESPONDENT
Senate
Apr 1, 2014 to Sep 30, 2016
STAFF ASSISTANT
Senate
Apr 1, 2013 to Mar 31, 2014
INTERN / STAFF ASSISTANT
Senate
Oct 1, 2012 to Dec 21, 2012
INTERN
Senate
May 11, 2011 to May 8, 2012

Chapter III

Earlier career

Prior roles per public sources. May overlap with employment records based on salary filings above.

Legislative Correspondent
Office of Senator Susan Collins
Intern
Office of Senator Susan Collins
Professional Staff Member
Senate Appropriations Committee

Chapter IV

Sponsored Travel

No disclosed trips yet.