The upper house of the United States Congress is known as the Senate, whose members are elected for a period of six years.
Currently, the United States Senate comprises 53 Republican senators and 45 Democrats, along with two individuals who typically lean toward Democrats. Every two years, one-third of the senators go up for reelection.
Read Also: Senators up for Reelection in 2022
There are 35 senators up for reelection in 2020. Which senators are up for reelection in 2020, and who will be contesting whom in the November 3 polls? Let’s have a look.

Republican Senators up for reelection in 2020:
Republicans have a majority in the Senate as of now, with 53 seats. However, 23 Republican senators are up for reelection in 2020 compared to 12 Democrats.
So, it increases the worry of the Republicans, as nearly twice the number of their senators are running for reelection compared to the Democrats, leaving them vulnerable to lose their majority in Senate.
Republican senators up for reelection in 2020 and their opponents who are ready to challenge them on November 3 are given below.
Incumbent Republican Senator | Opposition Candidate | State | Latest Polls and Predictions |
Martha McSally | Mark Kelly | Arizona | Kelly 47%
McSally 42% |
Thom Tillis | Cal Cunningham | North Carolina | Cunningham 50%
Tillis 39% |
Susan Collins | Sara Gideon | Maine | Gideon 44 %
Collins 43% |
Steve Daines | Steve Bullock | Montana | Daines 52%
Bullock 43 % |
Joni Ernst | Theresa Greenfield | Iowa | Greenfield 47%
Ernst 43% |
Cory Gardner | John Hickenlooper | Colorado | Hickenlooper 48%
Garner 39% |
David Perdue | Jon Ossoff | Georgia | Ossoff 44%
Perdue 43% |
Kelly Loeffler | Doug Collins (Republican)
Raphael Warnock (Democratic) Matt Lieberman (Democratic) |
Georgia | Warnock 41%
Loeffler 24% |
Lindsey Graham | Jamie Harrison | South Carolina | Harrison 48%
Graham 47% |
James Risch | Paulette Jordan | Idaho | Rasch 53%
Jordan 28%% |
Pat Roberts (retiring)
Roger Marshal (Republican nominee) |
Barbara Bollier | Kansas | Bollier 45%
Marshall 42% |
Dan Sullivan | Al Gross (Independent) | Alaska | Sullivan 48%
Gross 44% |
John Cornyn | MJ Hegar | Texas | Cornyn 50%
Hegar, 42% |
Mitch McConnell | Amy McGrath | Kentucky | McConnell 48%
McGrath 41% |
Mike Rounds | Daniel Ahlers | South Dakota | Polls not available |
Ben Sasse | Chris Janicek | Nebraska | Polls not available |
Bill Cassidy | Adrian Perkins (Democrat)
David Drew Knight (Democrat) |
Louisiana | Cassidy 52%
Perkins 33% |
Cindy Hyde-Smith | Mike Espy | Mississippi | Hyde-Smith 41%
Espy 40% |
James Inhofe | Abby Broyles | Oklahoma | Inhofe 46%
Broyles 30% |
Tom Cotton | Ricky Dale Harrington Jr (Libertarian) | Arkansas | Cotton 49%
Harrington 38% |
Shelley Moore Capito | Paula Jean Swearengin | West Virginia | Polls not available. Republicans likely to win big. |
Lamar Alexander (Retiring)
Bill Hagerty (Republican nominee) |
Marquita Bradshaw (Democrats)
Manny Sethi |
Tennessee | Hagerty 42.3%
Manny Sethi 38.8% |
Mike Enzi (Retiring)
Cynthia Lummis (Republican nominee) |
Merav Ben-David | Wyoming | Polls not available. Republicans most likely to win |
Dont miss: Psychic Predictions of 2020 elections
Democratic Senators up for reelection in 2020:
While there are 23 Republican Senators up for reelection in 2020, only 12 Democrat senators will seek reelection this year, which increases their chances of winning the majority in the Senate.
Incumbent Democratic Senator | Opposition Candidates | State | Latest Polls and Predictions |
Doug Jones | Tommy Tuberville | Alabama | Tuberville 54%
Jones 42% |
Gary Peters | John James | Michigan | Peters 47%
James 42% |
Chris Coons | Lauren Witzke | Delaware | Coons 57%
Witzke 27% |
Cory Booker | Rik Mehta | New Jersey | Booker 52%
Mehta 28% |
Dick Durbin | Mark Curran | Illinois | Durbin 44%
Curran 25% |
Ed Markey | Kevin O’Connor | Massachusetts | Markey 50%
O’Conner 40% |
Jeff Merkley | Jo Rae Perkins | Oregon | Merkley 55%
Perkins 35% |
Jack Reed | Allen Waters | Rhode Island | Polls not available. Democrats likely to win |
Jeanne Shaheen | Corky Messner | New Hemisphere | Shaheen 53%
Messner 39% |
Tina Smith | Jason Lewis | Minnesota | Smith 44%
Lewis 37% |
Mark Warner | Daniel Gade | Virginia | Warner 52%
Gade 39% |
Tom Udall (Retiring)
Ben Ray Lujan |
Mark Ronchetti | New Mexico | Lujan 51%
Ronchetti 41% |
Vulnerable Senators up for reelection in 2020:
The Senate race will be close, and some contests will be worth watching on November 3. The following are the ten senators who are most vulnerable in these elections.
- Doug Jones
- Cory Gardner
- Martha McSally
- Thom Tillis
- Susan Collins
- Kelly Loeffler
- Joni Ernst
- Steve Daines
- Ed Markey
- David Perdue
Possibility of a hung Senate:
Amid the contest of all the senators up for reelection in 2020, will the Senate decision be made on November 3, or will we have to wait even further? Only the Senate rate of Georgia will decide this.
Both seats of Georgia are up for reelection in 2020, and if one candidate fails to get 50% of the votes, runoff elections on January 5 will settle the dust.
On the first seat, David Perdue will be the Republican candidate, who is up for reelection due to the expiry of his six-year term.
However, on the other seat, Kelly Loeffler was appointed as the successor of the former senator Johnny Isakson, who retired during his term in 2019. Twenty-one candidates will contest this seat, which makes it highly unlikely that anyone will be able to get 50% of the votes.
This will basically be a “jungle primary” contest in which all the 21 candidates will run for the seat, regardless of the political party. If this happens, the Senate can remain unsettled until January, which will increase the curiosity of everyone again.
Senators up for reelection in 2020 will be facing the verdict of the Americans on November 3. Will Republicans successfully recapture the Senate, or will Democrats snatch the Senate away from Republicans? Only time will tell. Stay tuned to missed votes to get the latest updates regarding the 2020 elections.
Read more about close Senate races:
Colorado Senate Race 2020 polls: The Good, The Bad, and The Ugly
The Arizona Senate Race is an Example of the Prevalence of National Politics
5 Reasons Why the Alabama Senate Race is Leaning Republican
Maine Senate Race 2020 and Judge Kavanaugh Effect

Eli is a Political Data Scientist with over thirty years of experience in Data Engineering, Analytics, and Digital Marketing. Eli uses his expertise to give the latest information and distinctive analysis on US Political News, US Foreign Affairs, Human Rights, and Racial Justice equipping readers with the inequivalent knowledge.