Will the Trump nomination change our polarized partisan patterns?

I have noticed something else that may be significant in the some recent polls: The number of undecided voters seems to be increasing, rather than decreasing as it tends to do when nominees are determined.

This could result from cross-pressures. Majorities of voters have unfavorable feelings toward both candidates, and probably a record share, about 25 percent, has unfavorable feelings toward both. Apparently some voters are having trouble deciding which repellent candidate to vote for.

That’s just one question still to be determined. Another is turnout. Will upscale suburbanites appalled by Trump or young people disenchanted with Clinton bother to vote?

So far the irresistible force doesn’t seem to have moved the immoveable object as far as many people expected. But it’s too early to say it won’t.