Senator

Mazie K. Hirono

D Hawaii
Mazie K. Hirono
2025 Score

100%

Lifetime Score

96%

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  • Pro-environment vote
  • Anti-environment Vote
  • Missed Vote
  • Excused
  • Not Applicable

Vote Key

  • Pro-environment vote
  • Anti-environment Vote
  • Missed Vote
  • Not Applicable

2025

100%
35
Pro-environment votes
0
Anti-environment Votes

2024

100%
8
Pro-environment votes
0
Anti-environment Votes

2023

100%
16
Pro-environment votes
0
Anti-environment Votes

2022

96%
22
Pro-environment votes
1
Anti-environment Vote

2021

100%
31
Pro-environment votes
0
Anti-environment Votes

2020

92%
12
Pro-environment votes
1
Anti-environment Vote

2019

100%
14
Pro-environment votes
0
Anti-environment Votes

2018

100%
14
Pro-environment votes
0
Anti-environment Votes

2017

100%
19
Pro-environment votes
0
Anti-environment Votes

2016

100%
17
Pro-environment votes
0
Anti-environment Votes

2015

100%
25
Pro-environment votes
0
Anti-environment Votes

2014

80%
4
Pro-environment votes
1
Anti-environment Vote

2013

100%
13
Pro-environment votes
0
Anti-environment Votes

2012

83%
29
Pro-environment votes
2
Anti-environment Votes

2011

97%
34
Pro-environment votes
1
Anti-environment Vote

2010

100%
10
Pro-environment votes
0
Anti-environment Votes

2009

100%
14
Pro-environment votes
0
Anti-environment Votes

2008

92%
12
Pro-environment votes
0
Anti-environment Votes

2007

90%
18
Pro-environment votes
2
Anti-environment Votes
  • 2021

    Senator Hirono entered a statement into the Congressional Record noting how she would have voted on roll call votes 119, 123, and 125, which would have been scored as pro-environment. She was absent for these votes due to a family matter.

The Best Thing You Can Do Right Now

Tell Congress: Hold Trump’s EPA Accountable

Trump and EPA Administrator Zeldin have repealed the Endangerment Finding, which underpinned critical protections for our health and the environment. This repeal is a blatant denial of climate science and mounting destructive climate disasters. It gives Trump's fossil fuel donors a free pass to pollute the air we breathe with greenhouse gases — so they'll get richer while we get sicker.

Tell Congress: Protect People, Not Polluters
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