Former Foreign Secretary, and one time Tory leader, William Hague has said he thinks the outcome of June's general election was a "mistake"*, for failing to return the Tories to power with a majority, increased or otherwise, thus weakening the hand of the British Government in the Brexit negotiations.
This is, of course, nonsense. The UK is leaving the EU; the "British" people, in fact the English (and the Welsh), have told the EU "up EUr's". Therefore, the strength or weakness of the British Government vis-a-vis its people, is utterly irrelevant to the EU and its negotiators.
If the Maybot hadn't malfunctioned, and she'd won the majority she wished for, it wouldn't have made even the slightest bit of difference to EU negotiators. Having unexpectedly won a majority at the 2015 general election, David Cameron (remember him?) had a mandate -one I suspect he would rather he'd never got - to renegotiate Britain's relationship with the EU.
That was a mandate that mattered; the EU knew it, and even then, they were never going to give enough to satisfy Brexiteers. Now that we are on our way out, the best the UK will get, is a deal that is mutually beneficial, but gives nothing like the benefits of EU membership. May's mandate, or lack thereof, as much as makes no difference.