In the 1968 Washington Post story announcing Nixon as the winner of the 1968 presidential election, the author made a peculiar point:
Nixon’s Illinois victory, which emerged more than 15 hours after the voting
ended in Tuesday’s election, prevented third-party candidate George C. Wallace
from using his 15 electoral votes to determine the choice of the 37th President
and, alternatively, kept the contest from going to the House of Representatives
for the first time since 1824.
The phrase that interests me most is the claim that his Illinois victory "prevented third-party candidate George C. Wallace from using his 15 electoral votes to determine the choice of the 37th President."
Does this imply that a 3rd party candidate could somehow 'give' their electoral votes to one of the top two candidates, thus deciding the election? How would that work?