I have just read a sentence similar (!) to this: "He will institute new policies to ensure the best that is possible that all the people get their favorite ice cream."
Is it just I, or do the underlined words sound a bit strange to you, too?
I would have probably written: "He will institute new policies to ensure as best as possible that all the people get their favorite ice cream."
Thank you for your guidance.
(I do not know whether it makes any difference, but that person speaks South African English.)
It's messy and in my opinion, if it's to be left mostly as it is, there's a word (well, two words) missing.
He will institute new policies to ensure that the best [outcome] that is possible is that all the people get their favourite ice-cream.
However, I prefer your use of "as best as possible" although in this context, I would probably say something like "He will institute new policies to ensure that, as much/far as possible, everyone gets their favourite ice-cream".
Remember - if you don't use correct capitalisation, punctuation and spacing, anything you write will be incorrect.