Just looked at their ratings.... most of their subjects get a D or lower, it looks like to me. Are they a bit stringent?
Well.... A bit. The BIG difference is that if a member votes conservatively on a procedural vote then lops in with the RINOs for a final vote (ie they are able to say “I voted to repeal!” knowing full-well that their conservative vote won’t have any effect... Then CR slams them. Many, many Congress critters get away with this ruse and ACU ratings just don’t account for it. Go look at Ryan, et-al. Better yet, CR even sniffs out “TEA party” candidates who turned coat in their house once elected. They give no quarter to big-government voted of any kind. (Jody whatshername, Mia Love, Ben Sass, etc.)