How the Supreme Court’s decision on election law could shut the door on future fake electors

The Supreme Court’s rejection of a controversial election theory may also have another huge political consequence for future presidential contests: It obliterated the dubious fake elector scheme that Donald Trump deployed in his failed attempt to seize a second term.

That scheme relied on friendly state legislatures appointing “alternate” slates of pro-Trump presidential electors — even if state laws certified victory for Joe Biden. Backed by fringe theories crafted by attorneys like John Eastman, Trump contended that state legislatures could unilaterally reverse the outcome and override their own laws and...