Veteran GOP strategists overwhelmingly said Wednesday that Vice President Kamala Harris won her debate with former President Donald Trump — *** One prominent Republican operative supportive of Trump, 78, told The Post they believed Tuesday’s ABC News debate in Philadelphia likely shifted popular support one percentage point in the Democrat’s favor — at least for now. *** “If you are an undecided voter who wanted to, finally, hear Kamala Harris’ policy agenda last night, all you got were scripted lines of attack against Trump because Harris is the incumbent and has no plan to change course,” a former Trump White...