We're what? 80-something days out at this point? A side trip to NM and a likely fundraiser is not the end of the world. How many times can you hit the same 10-15 states over and over and over again?
With only 80 days to win the presidency? As many times as the realities of this universe allow you.
Hillary is not even working weekends at this point. Trump is generally taking Sundays off. A dalliance into certain states if there's a fundraiser along the way is not a fatal blow.
I'm not saying it is a fatal blow, but Hillary is also currently leading by a good bit while Trump is trailing by a good bit. It's getting harder to justify these kinds of trips when trailing in basically every swing state.