Clinton should strategically cede Utah and urge her supporters to vote for McMullin at this point as a way to guarantee Trump's defeat in the EC, assuming the race is generally within these parameters (it increasingly appears so).
Does that make sense though? Since a split EV probably means a Trump victory in the House,
As we've talked about in these threads before, if the GOP manages to hold onto the Senate, then a split EV probably leads to President Pence, as there are enough anti-Trump Republicans in the House to stop anyone from getting a majority. So then it goes to the VP choice in the Senate, where if the GOP holds power, we would get President Pence. OTOH, if the Dems hold the Senate, then I guess the House GOP will try to compromise to prevent President Kaine.
Though, sure, it's unclear that Clinton finds President Pence a more appealing option than President Trump.