Michael Bennet Colorado

Major US Senate Turnover Coming In 120th Congress (2027-2029)

The nation will witness a major US Senate turnover in the upcoming 120th Congress (2027-2029).

This would be due to retirements, primary defeats, potential election defeats, and 4 Senators running for Governor.

For now, the following is certain:

The following 11 US Senators are retiring:

Republican Tommy Tuberville of Alabama, running for Governor
Democrat Dick Durbin of Illinois
Republican Joni Ernst of Iowa
Republican Mitch McConnell of Kentucky
Democrat Gary Peters of Michigan
Democrat Tina Smith of Minnesota
Republican Steve Daines of Montana
Democrat Jeanne Shaheen of New Hampshire
Republican Thom Tillis of North Carolina
Republican Alan Armstrong of Oklahoma, appointed temprarily to replace Markwayne Mullin
Republican Cynthia Lummis of Wyoming

The following two US Senators were defeated in primaries:

Republican Bill Cassidy of Louisiana
Republican John Cornyn of Texas

The following seven US Senators are endangered for reelection:

Republican Dan Sullivan of Alaska, challenged by Mary Peltola
Republican Ashley Moody of Florida, challenged by Alex Vindman
Democrat Jon Ossoff of Georgia, challenged by Republican nominee
Republican Susan Collins of Maine, challenged by Graham Platner
Democrat Ed Markey of Massachusetts, challenged by Seth Moulton in primary
Republican Pete Ricketts of Nebraska, challenged by Independent Dan Osborn
Republican Jon Husted of Ohio, challenged by former Senator Sherrod Brown

Likely gains for Democrats seem possible or likely in

Alaska, North Carolina (open seat), Maine, Ohio, and with outside chances in Texas (open seat), Iowa (open seat), Montana (open seat), and Florida.

But Republicans have possibilities in Georgia, Michigan (open seat), and New Hampshire (open seat).

Also, the following US Senators are running for Governors of their states, and if elected, would resign from the Senate, and a replacement would be appointed or elected:

Democrat Michael Bennet of Colorado
Democrat Amy Klobuchar of Minnesota
Republican Marsha Blackburn of Tennessee

IF all of the above were to occur, the maximum number of new US Senators, either by election or appointment for replacements, could reach the mid 20s in number.

Imagining about 20 new Senators as a minimum, is very likely to occur!

Amy Klobuchar Becomes 4th Sitting Senator In 2026 Running For Governor Of Their States

The announcement by Minnesota Democratic Senator Amy Klobuchar that she is running for Governor, makes her the fourth sitting US Senator who is choosing, if the voters agree, to transfer from the legislative branch to being Chief Executive of their state governments.

The other three sitting Senators taking the same path are:

Michael Bennet (D) Colorado
Marsha Blackburn (R) Tennessee
Tommy Tuberville (R) Alabama

Klobuchar has been in the Senate since 2007, and if she were to fail to win the election this fall, she would keep her seat in the Senate, secure until 2030. She is a national figure, due to her run for the Presidency in 2020. The odds are heavy in her favor to win the Governorship of a state strongly “Blue”, and to succeed Tim Walz.

Michael Bennet has been in the Senate since 2009, and would keep his seat until 2028 if he lost the Governorship, but is heavily favored to win what is a largely “Blue” state. He also was a Presidential contender in 2020.

Marsha Blackburn has been in the Senate since 2019, and would keep her seat until 2030 were she to lose the Governorship race, which is unlikely. She also served in the House of Representatives from 2003-2019.

Tommy Tuberville has been in the Senate since 2021, and his former football coach background insures that he will, very likely, win the Alabama Governorship, just as his one Senate term ends in 2026.

With the likelihood that all four Senators will win their state Governorship election, and adding the nine Senators who are retiring from the Senate at the end of 2026, that means at least 13 Senators will be newly elected this November.

This does not include the contended Senate seats, which could bring about up to another 4-8 newly elected Senators.

So we are witnessing what could be one out of every five Senators being new to the body, and as it is now, at least one of every eight!

There have been, historically, 2,018 Senators, and after these meidterm elections, they will be greater than 2,030 in number!

Many Members Of Congress Seeking State Governorships!

The number of members of Congress seeking nomination and election as state governors in the Midterm Elections of 2026 is a revelation of their disillusionment with being members of either branch of Congress.

Among those trying to be nominated and elected as governors are the following.

US Senate to Governor (3)

Tommy Tuberville, Alabama (R)
Michael Bennet, Colorado (D)
Marsha Blackburn, Tennessee (R)

US House Of Representatives to Governor (12)

Andy Biggs, Arizona (R)
Katie Porter, California (D)–former
Eric Swalwell, California (D)
David Jolly, Florida (D)–former
Byron Donalds, Florida (R)
John James, Michigan (R)
Deb Haaland, New Mexico (D)–former
Nancy Mace, South Carolina (R)
Ralph Norman, South Carolina (R)
Dusty Johnson, South Dakota (R)
John Rose, Tennessee (R)
Tom Tiffany, Wisconsin (R)

Of these 15 members or former members of Congress, at this point, the odds would be that eight will become Governors, including all three Senators:

Tommy Tuberville, Alabama
Michael Bennet, Colorado
Marsha Blackburn, Tennessee

and five House members or former:

Eric Swalwell, California
Byron Donalds, Florida
Deb Haaland, New Mexico
Nancy Mace, South Carolina
Dusty Johnson, South Dakota