The National Law Review Wrote a Piece on How Covid-19 has impacted union elections.

A direct quote from the article states: “This new data provides an interesting context for the NLRB’s historical preference for in-person voting and the Regional Directors’ preferences for mail-in voting during the pandemic, given that both methods have yielded almost identical results in terms of union win rate and voter participation”

Read more about the article here: https://www.natlawreview.com/article/how-has-covid-19-impacted-union-election-results