I have modified the deluxe edition of the Electoral College Calculator to include the complexity of choosing Presidential Electors by Congressional District for the States of Maine and Nebraska. So far to date, the voters of these states have always awarded all Presidential Electors to one candidate. However, the possibility exists (particularly in Maine CD2) for a split result. The calculatore now supports this possibility.
Note: The Google advertisement links below may advocate political positions that this site does not endorse.