At least in the case of California's electors, it won't be so simple to upend custom and cast votes for anyone but Hillary Clinton, who won the statewide majority in November's election. A federal judge Friday rejected a challenge filed by elector Vinz Koller who is one of a group of electors nationwide hoping for a last-ditch escape from a Trump presidency.

As the Associated Press reports, U.S. District Court Judge Edward Davila "did not find that Koller faced irreparable harm" by having to cast his vote for Clinton. Koller had hoped to vote for a compromise Republican candidate such as John Kasich or Mitt Romney.

An attorney for Koller, Melody Kramer, said she planned to file an appeal.

Meanwhile, the final, certified vote count for California has Hillary Clinton winning the state by 4.2 million votes.

Previously: California Senator Barbara Boxer Takes Ceremonial Stab At Abolishing The Electoral College