Well, maybe not. But, as Nosemonkey asks, is David Cameron a closet Whig? He appears to be calling for the eminently sensible idea of removing a chunk of the most important prerogative powers to Parliament: not the very few powers that really do remain with HM personally on taking such advice as seems appropriate, but those exercised by her government, including declaration of war. About time we dealt with this, not that I'm particularly in favour of a formal constitution as a higher law.
Went idly looking for the list of regicides: Wikipedia gives us this. They include an ancestor of my head of chambers and an ancestor of a girl I used to fancy desparately. Also one Robert Tichbourne, which slightly surprises me, I thought the Tichbournes were recusants all the way.
I feel for the fates of Hardress Waller, James Temple, and Gilbert Millington myself.
ETA: (mainly links for my own benefit) in the meantime our current lords and masters seek to make it an awful lot easier to circumvent Parliament in making what may well post Jackson be considered primary legislation. See a decentish article in The Times as well.