I think they're too committed to Brexit to renege now. And - it's not something I normally feel about a Tory PM - not since Churchill anyway, or maybe MacMillan - I trust Theresa May; as far as I trust any politician - for now, at least. And UKIP, although irrelevant and redundant now their work is done, will still be lurking around to pick up a lot of votes in future should they be needed again (which, IMO is unlikely).I wouldn't count your chickens on the Tories keeping their EU promises just yet... Now that the Tories have UKIP well and truly out of the way I can see them changing their tune on Brexit quite dramaticaly over the next couple of years (if /when they win next month)