Also pardoned are former Trump lawyers Sidney Powell, Jenna Ellis, John Eastman and Kenneth Chesebro, who had filed unsuccessful lawsuits challenging the 2020 vote outcome.
Powell had said after that election that electronic voting systems switched millions of votes to Biden and that the Democrat won thanks to “communist money” – claims that led Mr Trump’s team to distance itself from her.
On the day he returned to office this year, the Republican president pardoned hundreds of his supporters who were charged with involvement in the US Capitol riot of 2021.
Trump himself was prosecuted on charges of plotting to overturn his loss in 2020, but that case brought by Biden’s justice department was thrown out after Trump was re-elected.
Some of the other election-related cases against Trump allies in Arizona, Georgia, Nevada, Michigan and Wisconsin have stalled or collapsed.
Last September, a Michigan judge dismissed forgery and conspiracy charges against 15 Republicans accused of a plot to support Trump’s claims he had won the 2020 vote.
Electors are part of the 538-member Electoral College that officially elects presidents, based on the state-by-state results of the general election.