Current member
Senate
MD
Democrat
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Senate
WI
Democrat
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Senate
CT
Democrat
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Senate
ME
Republican
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Senate
MA
Democrat
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Senate
OR
Democrat
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Senate
AL
Democrat
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Senate
CA
Democrat
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Senate
CT
Democrat
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Senate
MT
Democrat
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Senate
CO
Democrat
Former memberVice presidentDemocrat
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Senate
RI
Democrat
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Senate
VA
Democrat
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Senate
AK
Republican
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Senate
MA
Democrat
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Senate
ME
Independent
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Senate
NV
Democrat
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Senate
IL
Democrat
Former member
Senate
PA
Democrat
Current member
Senate
AK
Republican