[ItsForTheChildren]

The electors have been selected and they can vote however they want. They are Obama electors.

If they can't vote for Obama I don't think they'll be voting for McCain. You think they'll install Hillary?

[DJ MacWoW]

My understanding is that if a candidate is disqualified, congress chooses. That may not be correct but the Constitution says that they can be disqualified after they become "President-Elect", that means after the Electoral College vote..

U.S. Electoral College

January 8, 2009 * Counting Electoral Votes in Congress Public Law 110-430 changed the date of the electoral vote in Congress in 2009 from January 6 to January 8. This date change is effective only for the 2008 presidential election. The Congress meets in joint session to count the electoral votes (Congress may pass a law to change the date). The President of the Senate is the presiding officer. If a Senator and a House member jointly submit an objection, each House would retire to its chamber to consider it. The President and Vice President must achieve a majority of electoral votes (270) to be elected. In the absence of a majority, the House selects the President, and the Senate selects the Vice President. If a State submits conflicting sets of electoral votes to Congress, the two Houses acting concurrently may accept or reject the votes. If they do not concur, the votes of the electors certified by the Governor of the State would be counted in Congress.