[aaronem]

You can turn that argument around just as easily; without honest campaigns, there is no incentive for an informed population, because there is no meaningful chance for popular support to elevate a candidate running an honest campaign to the same heights attained by those to whom all weapons are friends.

[brd]

Politicians are public figures by definition. There is plenty of information out there to make informed decisions with or without the existence of honest campaigns.

The only reason there is "no meaningful chance for popular support" of an honest candidate is because the voting population doesn't reward it; and perhaps more importantly, the voting population doesn't punish dishonesty.

[aaronem]

> There is plenty of information out there to make informed decisions

It's funny you should say that, given the number of people who thought they were making informed decisions to support Obama, especially in 2008, and who have since found so many reasons to feel so deeply betrayed.

Short of mind-reading, I'm not sure how you imagine it possible for citizens, almost all of whom have lives to lead which do not revolve around the ambitions of the current crop of politicians, to inform themselves in as accurate and precise a fashion as you seem to consider trivial; for almost everyone, it comes down to a choice among competing sets of analysts, all of whom arrogate unto themselves the mantle of reliable authority, and all of whom have not only equal reason to lie in support of their own desiderata, but equal lack of compunction to dissuade them from such mendacity. (That's why they call corruption corruption; like any rot, it spreads.)

As for "punish[ing] dishonesty", I'd be interested to hear your thoughts on precisely what benefit there is in choosing one pack of liars over another. Given the track record of American politicians, and especially of American presidential candidates, favoring one in particular seems less likely to succeed at "punish[ing] dishonesty" than to act as a strong selective pressure in favor of the most skillful and least scrupulous liars available -- something I'd argue was not just perceptible but obvious in modern American politics, except that I think the presidency has been the province of liars since at least as far back as Andrew Jackson.