"In good faith" became one of the mantras of the late George W. Bush years. It was the perfect exculpatory phrase for decisions that turned out to be terrible; as long as the original intentions were good, we can hardly blame these hard-working public servants for having erred.
Of course that rhetorical flourish overlooks the fact that those decisions, had any forethought whatsoever gone into them, should never have been made irrespective of the intentions. The intention to turn Iraq into Scott Walker's Wisconsin in the desert no doubt was sincere, but a child could have seen that it had no chance of happening. There's nothing admirable about diving into something that would cost dearly in blood and dollars with nothing but Good Faith in its favor.
The opposite, arguments made in explicit bad faith, is one of the keys to understanding Trump and his success at manipulating the media. They don't even feign sincerity. They lie blatantly and their supporters couldn't care less because it *feels* true and no matter how many times we go through this cycle the Democrats still haven't come up with an effective way to handle it or respond. To quote Washington Post reporter Ishaan Tharoor, "The Elizabeth Warren DNA gambit encapsulates in microcosm what the Dems have been prone to for so long: A credulous insistence that fact-checking can dispel talking points made in cynicism and bad faith."
The example he uses is ultimately irrelevant, although I suspect in the long term it will follow Warren around like "potatoe" did Dan Quayle. In the grand scheme, though, it doesn't mean anything. The question I have, and so often do when I see things like this, is: what was the goal here? What, in the best-case scenario, was taking a right-wing talking point at face value and trying to rebut it going to accomplish?
The hard facts are that when the right makes these idiotic accusations, 1) nobody on the left takes them seriously, at all (see: "Her emails." Try to find a single person who isn't a Republican who gave a flying shit about Her Emails.) and 2) nobody on the right is going to stand corrected, ever. They will – if they bother updating at all – simply move the goalposts. Here the pivot from "lol Pocahantas" to "lol 1/1024th" was so fast it was almost imperceptible.
I think, as usual, the root of the problem is the delusion that there is a big group of Undecided Voters out there who can be persuaded if only they have it pointed out to them that the right makes up 95% of its talking points. Democrats are forever trying to persuade and reach a hypothetical voter that probably doesn't exist – at least not in great numbers. I understand that someone has to maintain the daily list of things the White House says that are blatant lies, if for no reason other than to establish that the pattern isn't changing. But let the interns and faceless DNC staffers take care of that.
The candidates themselves should talk about nothing but 1) a policy agenda that doesn't require white papers to understand and 2) a vision of where the country needs to go that doesn't refer to policy. Do that and focus on getting more people who are predisposed to vote for you to turn out. Attempting to rebut Trumpian accusations is pointless because nothing will dislodge them from the minds of people inclined to believe them and anyone inclined to believe things Donald Trump says absolutely is not going to be reached with some fact checking.