The Speechwriter: A Brief Education in Politics by Barton Swaim:
It’s impossible to attain much success in politics if you’re the sort of person who can’t abide disingenuousness. This isn’t to say politics is full of lies and liars; it has no more liars than other fields do. Actually, one hears very few proper lies in politics. Using vague, slippery, or just meaningless language is not the same as lying: it’s not intended to deceive so much as to preserve options, buy time distance oneself from others, or just to sound like you’re saying something instead of nothing.