"I just have to say, given the challenges that America faces—23 million people out of work, Iran about to become nuclear, one out of six Americans in poverty—the fascination with taxes I've paid I find to be very small-minded compared to the broad issues that we face. But I did go back and look at my taxes and over the past 10 years I never paid less than 13 percent. I think the most recent year is 13.6 or something like that. So I paid taxes every single year. ... Every year I've paid at least 13 percent and if you add, in addition, the amount that goes to charity, why the number gets well above 20 percent."—Mitt Romney, taxpaying superhero, obviously.
You know, one of "broad issues" that the country faces is class warfare, a central piece of which is the very wealthy not paying their fair share of taxes. So, I'm quite sure Mitt Romney finds the "fascination" with his taxes "small-minded," but that's because he's a fuckhead, not because it's actually an inconsequential issue.
And, no, what someone pays to charity is not the same as what they pay in taxes. I can take tax deductions for charities to which I donate that spend virtually none of their donations in the US, as but one example of why those things are not equal.
So I don't really give a flying flunderton that Mitt Romney paid "above 20%" in taxes and charitable contributions combined, particularly considering that's still less than half the percentage I pay in taxes every year, despite the fact I make diddly-shit. Especially compared to Mitt Romney.