https://www.ncsl.org/research/elections-and-campaigns/the-electoral-college.aspx
"There is no federal law or constitutional provision requiring electors to vote for the party that nominated them, and over the years a number of electors have voted against the instructions of the voters. In 2004, a Minnesota elector nominated by the Democratic Party cast a ballot for John Edwards, the vice presidential running mate of John Kerry–thought to be an accident. Electors generally are selected by the political party for their party loyalty, and many are party leaders, and thus not likely to vote other than for their party's candidate."
The fix is in. This will happen.