Election night delays expected for some 2026 races, experts say

Election night on Tuesday may not immediately reveal which party controls the House or Senate, as many close contests are expected to take days or weeks to be finalized, election experts said. The delay is typical for races with narrow margins and high volumes of mail-in ballots, not evidence of wrongdoing.

David Becker, executive director of the Center for Election Innovation & Research, said the perception that results will be known early is unrealistic. > "If we do, then there's a very big wave going on," he said, adding that candidates who think they are losing are likely to spread misinformation about the process. Becker also noted that President Trump is expected to question the results, as he did in 2020.

Lawrence Norden, vice president of the Brennan Center for Justice's Elections and Government Program, warned that misinformation thrives in the period between voting and result certification, especially when races are tight. > "When it's super close, it's not going to matter how fast you are counting the ballots," he said, emphasizing that public perception of counting speed does not reflect actual counting speed.

Officials across states such as California, Colorado, Hawaii, Nevada, Oregon, Vermont, Utah, Washington and the District of Columbia automatically send mail ballots to all registered voters, which can extend the counting timeline. Mail ballots must undergo signature verification and, in some states like Pennsylvania and Wisconsin, cannot be processed until the morning of Election Day, further slowing results.

Becker explained that late-reporting mail ballots can create a temporary partisan swing in early results, a phenomenon observed in previous elections. He cautioned observers to focus on the eventual certification rather than early projections.

Gates, executive director of Arizona State University's Mechanics of Democracy Laboratory, said Arizona's vote-counting timeline is comparable to other states, but the state's status as a swing jurisdiction draws heightened scrutiny.

Overall, experts advise voters to await official certification before drawing conclusions and to be skeptical of unsubstantiated claims about election integrity.