This would be an explosive story if the presidency were on the line:

Hamilton County polling places will have to stay open until 9 p.m after supporters of Ohio’s marijuana legalization measure filed a lawsuit late Tuesday to extend voting hours because of several voting problems reported there.

ResponsibleOhio, the political action committee backing state Issue 3, filed an injunction in the Hamilton County Court of Common Pleas. Former state Sen. Eric Kearney, as a consultant for ResponsibleOhio, argued to keep the polls later before Judge Robert P. Ruehlman, who granted the extension.

Polling places were scheduled to close at 7:30 p.m. statewide. State law requires poll workers to let any voter in line at closing time to cast a ballot.

Ohio Secretary of State Jon Husted directed all county boards of election to embargo results until 9 p.m.

Among the issues reported at Hamilton County polling places:

• Polling places had problems using new electronic poll books, which created long lines and may have caused voters to leave without casting a ballot.
• Polling places did not have or did not use backup paper poll books when problems arose with electronic pollbooks.
• Poll workers did not have provisional ballots on hand or failed to provide provisional ballots to qualified voters.

There is now an embargo on election returns throughout Ohio until polls close at 9 pm.