Resolution Criteria
This market will resolve to YES if a Republican presidential candidate who loses the 2028 election explicitly refuses to concede defeat and/or makes public statements claiming the election was fraudulent, stolen, or otherwise illegitimate after the results are clear.
The market will resolve to NO if the Republican candidate concedes defeat in a timely manner after the election results are clear, without making claims that the election was fraudulent or illegitimate.
For resolution purposes:
- Clear statements from the candidate themselves will be the primary evidence 
- The market will not resolve until at least one week after Election Day to allow time for the situation to develop 
- If the Republican candidate initially contests but later concedes before the Electoral College meets, this will still resolve as YES 
- If the Republican candidate wins the 2028 election, this market will resolve as N/A 
I will use my judgement to determine whether statements constitute denial of election results, considering the context and substance of the claims. Edge cases will be resolved according to my judgement.