Recent polling in Kentucky’s 4th congressional district Republican primary shows a tight contest between incumbent Representative Thomas Massie and Trump-endorsed challenger Ed Gallrein, sustaining uncertainty over the margin of victory. A Quantus Insights survey from May 11-12 found Gallrein leading 48.3% to 43.1% among likely voters, with undecided respondents breaking toward the challenger, while a Big Data Poll tracking survey released May 15 showed Massie ahead 50.6% to 49.4%. Trump’s endorsement and heavier spending contrast with Massie’s local grassroots support and stronger performance among younger voters. The May 19 primary date leaves little time for further movement, keeping multiple narrow victory margins for either candidate priced similarly in trader consensus.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedKY-04 Republican Primary: Margin of Victory
Gallrein 9%+ 21%
Massie 3-6% 21%
Massie 6%+ 20%
Gallrein 6-9% 20%
Gallrein 9%+
20%
Gallrein 6-9%
20%
Gallrein 3-6%
18%
Gallrein <3%
17%
Massie <3%
14%
Massie 3-6%
21%
Massie 6%+
20%
Other
1%
Gallrein 9%+ 21%
Massie 3-6% 21%
Massie 6%+ 20%
Gallrein 6-9% 20%
Gallrein 9%+
20%
Gallrein 6-9%
20%
Gallrein 3-6%
18%
Gallrein <3%
17%
Massie <3%
14%
Massie 3-6%
21%
Massie 6%+
20%
Other
1%
This market will resolve according to the margin of victory between the top two candidates in the specified election.
For the purpose of this market, the “margin of victory” is defined as the absolute difference between the percentages of valid votes received by the first-place and second-place candidates. Percentages of the valid votes received by each candidate will be determined by dividing the total number of valid votes each of the top two candidates receives by the sum of all valid votes cast in the election.
If the reported value falls exactly between two brackets, then this market will resolve to the higher placed bracket.
If two or more candidates tie for the most valid votes in this election, and the tie is between two candidates listed, this market will resolve to the lowest margin bracket for the candidate whose listed last name comes first in alphabetical order. If the tie is between a listed candidate and an unlisted candidate, this market will resolve to the lowest margin bracket for the listed candidate. If the tie is between two or more unlisted candidates, this market will resolve to “Other.”
This market will resolve based on the official vote count once the count has been made official.
If the results of the specified election are not known definitively by November 3, 2026, 11:59 PM ET, this market will resolve to "Other".
The resolution source for this market will be official results from the Kentucky State Board of Elections and/or the Kentucky Secretary of State; however, a consensus of credible reporting may also be used.
If a recount is initiated before the vote total has been made official, the market will remain open until the recount is completed and the vote is made official.
Market Opened: May 18, 2026, 11:12 AM ET
Resolver
0x69c47De9D...This market will resolve according to the margin of victory between the top two candidates in the specified election.
For the purpose of this market, the “margin of victory” is defined as the absolute difference between the percentages of valid votes received by the first-place and second-place candidates. Percentages of the valid votes received by each candidate will be determined by dividing the total number of valid votes each of the top two candidates receives by the sum of all valid votes cast in the election.
If the reported value falls exactly between two brackets, then this market will resolve to the higher placed bracket.
If two or more candidates tie for the most valid votes in this election, and the tie is between two candidates listed, this market will resolve to the lowest margin bracket for the candidate whose listed last name comes first in alphabetical order. If the tie is between a listed candidate and an unlisted candidate, this market will resolve to the lowest margin bracket for the listed candidate. If the tie is between two or more unlisted candidates, this market will resolve to “Other.”
This market will resolve based on the official vote count once the count has been made official.
If the results of the specified election are not known definitively by November 3, 2026, 11:59 PM ET, this market will resolve to "Other".
The resolution source for this market will be official results from the Kentucky State Board of Elections and/or the Kentucky Secretary of State; however, a consensus of credible reporting may also be used.
If a recount is initiated before the vote total has been made official, the market will remain open until the recount is completed and the vote is made official.
Resolver
0x69c47De9D...Recent polling in Kentucky’s 4th congressional district Republican primary shows a tight contest between incumbent Representative Thomas Massie and Trump-endorsed challenger Ed Gallrein, sustaining uncertainty over the margin of victory. A Quantus Insights survey from May 11-12 found Gallrein leading 48.3% to 43.1% among likely voters, with undecided respondents breaking toward the challenger, while a Big Data Poll tracking survey released May 15 showed Massie ahead 50.6% to 49.4%. Trump’s endorsement and heavier spending contrast with Massie’s local grassroots support and stronger performance among younger voters. The May 19 primary date leaves little time for further movement, keeping multiple narrow victory margins for either candidate priced similarly in trader consensus.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated


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