I've seen some criticism that Harris hasn't sat down for a real interview yet. Honestly, I've been thinking about it and I struggle to think of a single time a sit-down interview helped. Nobody watches them in full, and the next day the clipped up snippets from when they said not-great things circulate. Nobody ever shares "what a great answer" clips.
I'd say fuck that. Rallies and town halls, take questions from regular people and that's it. Spend. the 100 days wisely.