with 10 seconds of research - it's not a GOP ad, it's from an PAC called "New Faces GOP" which has made no contributions to any candidate. It appears that they blew their wad on this ad.
A quick look at their 22 donors using public records, and imagine that - none are registered to vote....
Why might that be? Well, of course, the answer is obvious. They got caught in 2016 putting up ads about "republicans" who were voting for Hillary, which fell apart when those people were identified and found to be registered lifelong democrats.
Too convenient. Seems like a reason to be outraged, and we all know how the left loves to be the victim.