So, Hillary Clinton has apparently decided to go with the conventional in attacking Trump's Vice Presidential choice, calling him an ideological extremists yada, yada, yada, that will all go in one ear and out the other.
I would have preferred a more trollish approach. Hillary should have congratulated Trump on an excellent choice, said that Pence's many years of service in government, both in the House and as Governor of Indiana, show that he is well-qualified for the job, and noted with approval that Pence didn't let ideological dogma stand in the way of giving poor people access to health care when he approved the Medicaid expansion under Obamacare, taking care to use the word "Obamacare."
Anyone who hates Trump is not going to change their minds just because of his Vice Presidential pick. But people who like his outsider status, he purity of any government service, will be distrustful upon being reminded that he has chosen a political insider as his running mate. And as for choosing a candidate who has collaborated in the hated Obamacare -- well, that should be enough to put him on the defensive for a while and force him to do a good deal of explaining. And in the world of politics, once you are on the defensive and explaining, you have lost the discussion.