Not they didn't.

But they did during 2009. By July, a number of bills were already approved by committees in the House. And the Fall is usually when the companies get prices for the next year. So it went up sharply then. Then in again in 2010. Price is not always comparable because the level of coverage had also changed. We had to get new plans and while they covered some mandatory free procedures and didn't have lifetime maximum, they had also bigger deductibles and a reduction in options and procedures covered.

So you are saying we should consider one year earlier in the analysis?

We should look at bit earlier 2009 at least.

That doesn't mean we'll find a larger jump there, I found it for my self, but the KFF study shows there wasn't in general. However discarding date legislation has passed is also dishonest as factcheck did. Companies which are affected by regulations monitor them closely and adjust to them correspondingly.

Even then, the ACA came up pretty quickly after Obama got elected, they had one or two years to back up premiums, and premium increases seem to have remained steady during that time. What the ACA did do is outlaw junk insurance policies that were cheaper but not useful as health insurance.