For Heritage only Mike Lee scores 100%, though Cruz, Paul & Roberts all score above 90%.
Clearly, Heritage sets the bar higher than does ACU.
I say: that's all good, and we should pick our leaders from the top of such lists.
Further, we should take careful note of what I call the Mainstream Republican Career Line -- true in virtually every example (except old Ron Paul) that I've looked at.
It is that these guys most all start off young-and-conservative, but over time grow to be old-and-"moderate".
Just like Thad Cochran, they slip-slide their way down the slippery slope toward "moderate" liberalism.
That's an argument for term-limits, but also stronger primary challengers.
Of course, if an old Thad Cochran uses skullduggery to defeat his primary opponent, it gets frustrating.
But I surely would not turn the state over to a Democrat senator.
The phrase "cutting off your nose to spite your face" comes to mind.