This video from the USA about Britain says about itself:
30 May 2017
At the start of the election campaign, some polls had the Tories with leads of more than 20 points.
The prime minister called the snap election last month in order to “strengthen my mandate” in Brexit negotiations.
However, if Friday’s poll were repeated on election day, May would face the ignominy of having gone to the country, only to see her government’s majority cut down to wafer-thin proportions.”
Read more here.