Personally, I'm appalled at the expenditure of 6,500 American lives and
$2 trillion (and counting) for an ill-advised nation-building project in Afghanistan and a war of choice in Iraq. (Not to mention the innocent civilians killed in those countries.)
But those were Bush's decisions, so I guess they don't count.
As for the campaign spending, the outrage that has been generated by Citizens United is over the realization that a few extremely wealthy individuals can easily outspend the other 305 million American citizens, thus distorting the democratic process. Four individuals have already pledged to spend at least $300 million to support the Republican candidate. That's not free speech - that's the suppression of the majority.