Have fun. A chart. Not over til it's over.
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Part 1
Only Senate Class 1 is up for election this year. Class 2 is in 2 years. Class 3 is in 4 years.
Two Senators only for each state.
Congress Before After Senate Before/After
Dem Rep I Dem Rep I 1 1 // 2 3 (stays)
Alabama - 9 1 6 D R
Alaska - 1 1 R R
Arizona - 9 4 5 R / R
Arkansas - 4 4 R R
California - 53 39 14 D / D
Colorado - 9 3 4 R D
Connecticut - 5 5 D / D
Delaware - 1 1 D / D
Florida - 27 11 16 D / R
Georgia - 14 4 10 R R
Hawaii - 2 2 D / D
Idaho - 2 2 R R
Illinois - 18 11 7 D D
Indiana - 9 2 7 D / R
Iowa - 4 1 3 R R
Kansas - 4 4 R R
Kentucky - 6 1 5 R R
Louisiana - 6 1 5 R R
Maine - 2 1 1 I / R
Maryland - 8 7 1 D / D
Massachusetts - 9 9 D / D
Michigan - 14 5 9 D / D
Minnesota - 8 5 3 D / D
Mississippi - 4 1 3 R / R
Missouri - 8 2 6 D / R