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Up to 3, depending on how you count, although most political experts would say 2.

Senator Bernie Sanders of Vermont is an Independent who caucuses with the Democrats. He has always run as an Independent in both his House and Senate races.

Senator Joe Lieberman of Connecticut is listed as an "Independent Democrat". He is a former Democrat who was defeated in the Democratic primary in 2006 and won the general election as an independent. He caucuses with the Democrats.

Senator Lisa Murkowski of Alaska lists herself as a Republican, but won re-election in 2010 as a write-in candidate after being defeated in the Republican primary. She still calls herself a Republican and caucuses with the Republicans.

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13y ago

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