Yes there is that strange intellectual tic of the neo-conmen, it's as though they believe they can ingratiate themselves with the liberals if they attack someone-anyone- to the right of them, principles be damned!
As for Ponnuru, I believe that NRO showed a skirmish between him and Derbyshire over the Schiavo case.
I was wrong about Ponnuru, -- he is a good one on this.
I think, the temptation to ingratiate oneself with the liberals is particularly string in the New York City and Washington cocktail circuit, where most of the NR staff (and the Supreme Court justices) spend their time.