As I understand it, Club for Growth is limited in what they can do in the fall anyway, since BCRA purports to limit a lot of GOTV and advertising activities by limiting them to hard money only. If CfG runs through its hard money donors during the primary season (and it's blowing a lot of money in Pennsylvania and spent a lot in Texas already, not to mention the fun in Iowa), it won't have the cash it needs for fall mischief. I imagine they'd like to play in the Colorado Senate campaign, but wonder if they'll have the money.