Last time Parliament was prorogued in this kind of manoeuvre was back in Charles I's time. And that didn't end too well, for the country or for Charles...

Can't be done without the Queen's consent, and that would put her right in the middle of a political firefight. It would set off a process that would very probably ultimately mean the end of the monarchy - as it did last time. I reckon she'd insist it couldn't be done without the agreement of the Privy Council and probably the Speakers of both the Commons and Lords.

Rory Stewart is by a long long way the best candidate to be Prime Minister, which is why he hasn't a hope of winning.