The Ballot Brief
Southeastern Connecticut Planning Region, Connecticut

Connecticut Senate District 19

2 candidates are tracked for Connecticut Senate District 19 on the November 3, 2026 ballot: Catherine Osten and Jason Guidone. Candidate information follows official Southeastern Connecticut Planning Region election filings; verify with the official election office linked below.

About this race

Catherine Osten (Democratic), Jason Guidone (Republican) are the major-party nominees for Connecticut Senate District 19 on the November 3, 2026 ballot. Listed from the party endorsement and nomination certificates filed with the Secretary of the State and the August 11 primary results; minor-party lines and petitioning candidates are certified separately and are not yet reflected here. Catherine Osten is the sitting member, per the General Assembly's member list. Connecticut nominates by party convention; an August 11, 2026 primary was held only where a challenger qualified, per the Secretary of the State.

What this office does

State legislator. State legislators write and vote on state laws and the state budget, which fund schools, roads, prisons, universities and health programs, and set the rules for local governments and elections. Each member represents one district and serves on committees that shape bills before a floor vote. Terms are two years in most state houses and four in most state senates.

This race. Elected by district: only voters who live in the district see this race on their ballot. The sitting officeholder, Catherine Osten, is on the ballot.

Connecticut › Southeastern Connecticut Planning Region › Connecticut Senate District 19

Catherine Osten

Democratic Incumbent

Biography

Catherine Osten serves as Deputy President Pro Tempore, representing 10 towns including Columbia, Franklin, Hebron, Lebanon, Ledyard, Lisbon, Marlborough, Montville, Norwich and Sprague, per senatedems.ct.gov. No campaign website was found as of September 20, 2026.

Jason Guidone

Republican

Top priorities
  • Wants to make Connecticut more affordable so families, retirees and young people can afford to stay, through responsible spending and tax control.
  • Supports police and first responders and describes safe neighborhoods as a top concern.
  • Favors keeping education decisions in local hands with parental involvement rather than state direction.

Per the campaign site.

Biography

Jason Guidone, of Hebron, is a former ESPN executive and the Republican Party endorsed candidate for the 19th Senate District, per CBIA's 2026 primary results coverage. His campaign site describes him as a neighbor rather than a career politician who is focused on practical, community centered concerns, per guidoneforsenate.com.

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Questions about this race

Who is running for Connecticut Senate District 19 in 2026?

2 candidates are tracked for Connecticut Senate District 19 on the November 3, 2026 ballot: Catherine Osten and Jason Guidone. Candidate information follows official Southeastern Connecticut Planning Region election filings; verify with the official election office linked below.

When is the Connecticut Senate District 19 election in Connecticut?

Election Day is Tuesday, November 3, 2026. Registration deadlines, early voting dates and mail ballot rules for Connecticut are on the Connecticut election hub at theballotbrief.com.

How do I see my exact Southeastern Connecticut Planning Region ballot?

Enter your ZIP code in the lookup at theballotbrief.com for the statewide and congressional races, or a full street address to add the county, city and district contests for that location.

Verify this race

Candidate roster from official Southeastern Connecticut Planning Region and state election office filings. Bios and priorities carry their attribution inline.

Cross-check with the official Connecticut election office, or see the full Southeastern Connecticut Planning Region sample ballot and your exact ballot by address.

The rest of your Southeastern Connecticut Planning Region ballot

19 tracked races in Southeastern Connecticut Planning Region, Connecticut. Landed here from another county's search? Look up your own ballot below.

Also on your ballot
Connecticut Senate District 29Connecticut Senate District 33Connecticut House District 8See all 19 Southeastern Connecticut Planning Region races
Candidate profiles
Catherine Osten, full profileJason Guidone, full profileOfficial Connecticut election office