Initial Senate Ratings: Democrats Have a Lot of Defending to Do – Sabato's Crystal Ball
Democrats Keep Control of Senate After Catherine Cortez Masto Wins Nevada Race - WSJ
CNN's key Senate races for the 2018 midterm elections | CNN Politics
All but one 2022 Senate winner matched party of state presidential vote | Pew Research Center
Midterm Senate elections 2022: Democrats keep majority
Fetterman defeats Oz in first Senate seat flip - POLITICO
Senate Dems face brutal 2024 map with at least eight undecided incumbents - POLITICO
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2020 election: America's anti-democratic Senate, by the numbers - Vox
Why the Democrats are our narrow favourites to win the Senate
Republican Fears About Holding The Senate Start To Sink In : NPR
A Blue Nevada Means Democrats Will Keep Control Of The Senate | FiveThirtyEight
Which Senate seats are up in 2022 - The Washington Post
The partisan history of every U.S. Senate seat, in 1 awesome chart - The Washington Post
US Senate seats up for election in 2022 midterms, listed by state
Why Georgia's seat matters for 2024: Democrats face a tough map
Tennessee Republican lawmakers hold onto majority after elections | localmemphis.com
Partisan control of the House remains unknown with 14 races uncalled
Georgia: Democrats win control of US Senate – DW – 01/06/2021
US Senate seats rarely have changed party in recent special elections | Pew Research Center
With Control of the Senate in Play, These Are the Races to Watch - The New York Times
The First Measured Century: Book: Section 10.2
United States Senate - Wikipedia
Federal Legislation – The Midterms - Peace Officers Research Association of California
Upset hopes keep Senate map in flux: The Note - ABC News
How do major political parties split control of Congress? - U.S. Embassy & Consulates in Italy
Balance of Power in the Senate | Bloomberg Government
