Dark money groups have spent nearly $1 billion so far to boost GOP Senate candidates

https://www.npr.org/2022/10/22/ [login to see] /dark-money-groups-midterm-elections-republicans-democrats-senate
More than $1.6 billion has been spent or booked on TV ads in a dozen Senate races, with $3 out of every $4 being spent in six states — Georgia, Pennsylvania, Arizona, Wisconsin, Nevada and Ohio, according to an NPR analysis of data provided by the ad-tracking firm AdImpact.

Most of that money is coming from dark money outside groups with little-to-no donor transparency — and Republicans are getting a huge boost from them.

Outside groups have poured in nearly $1 billion to buoy GOP Senate candidates. Just how important have these groups been to Republicans? Eighty-six percent of the money going toward pro-GOP TV ads is coming from these outside groups, compared to 55% for Democrats. (Below, see how much Republican and Democrats' campaigns and outside groups are spending on TV ads in key states.)