Former South Carolina governor (and former House member) Mark Sanford has just announced that he will be challenging Donald Trump in the primaries.
Of course, the man has no chance of prevailing.
He could, however, weaken Donald Trump for the general election. (Those who primary a sitting president often have the effect of weakening him.)
So one has to wonder: Is this his intention?
Certainly, there is bad blood between the two. But this sort of animosity seems…well, over-the-top.