Final answer:
Faithless electors are members of the Electoral College who 'stray' or switch their votes from the candidate who won the popular vote in their state.
Step-by-step explanation:
The two-word term that describes members of the Electoral College who 'stray' or switch their votes from the candidate who won the popular vote in their state is faithless electors. Faithless electors are electors who do not vote for the candidate they were pledged to support. This has happened in some elections, where electors have cast their votes for a different candidate or left their ballots blank.