The Shirley Porter approach didn't involve redrawing boundaries as such, other techniques, such as stopping property owned by the council being used to rehouse tenants living in dangerous buildings, because they might have voted Labour in marginal wards, and selling them instead to people who could be expected to vote Tory.

Fiddling the electoral boundaries as such over here is pretty difficult these days, because strict rules about how it should be done have been imposed over the years.

I suppose when you've got such an old country with such an old established system as the United States it's a bit hard to change. After all, the USA is probably the country with by far the oldest established constitution in the world. Not so surprsing if a few wheels fall off the old girl from time to time.