The US held 23 presidential elections from 1932 to 2020. In 17 of those years, about 3 in 4, the S&P 500 ended the year higher (J.P. Morgan research).
Over the years, prices follow profits, growth and inflation much more than one vote. Whoever is elected, companies keep working and earning.
Election years averaged about 6.2% a year, against 8.7% for all years since 1932. A little lower, not a disaster.
Elections do bring a bit more noise. Swings averaged about 16.5% in election years and 15.3% in other years. The worry tends to grow before the vote and fade once the result is known.
Next big election, at home or abroad: write down what you feel like doing. Read it again a week later. Most urges look smaller by then.
Elections bring a few weeks of noise. Over years, profits and growth move prices more than votes.
Write what you’d do after big news; reread in a week.