Republican super PACs are outspending 2016 candidates on TV by 20-to-1

Analyzing television ad spending data from SMG Delta, NBC's Mark Murray writes that Republican super PACs have spent $20 on television ads for every dollar spent by a Republican presidential candidate's campaign. For the Democrats, the ratio is flipped. Democrats have spent about $19 of their own for every dollar spent by super PACs supporting them. But then, if you think about it, that makes sense.

Jeb Bush's super PAC is way outspending his campaign -- just as his super PAC way outraised it. For Clinton, the opposite is true -- just as the opposite is true on ad spending by each party. Republican super PACs have still spent money on TV ads at a much higher ratio than the ratio of how much more they've raised. Part of that, as Murray notes, is that super PACs generally pay higher ad rates than campaigns, due to a law that allows political campaigns to pay lower rates.