[winstonewert]

The same system is in Canada, and typically the party in power tries to time the election so they have the best chance of winning. Any numbers of factors could come into this (polling numbers, expected news event during the campaign, length of campaign, etc).

[motbus3]

I am not Brit but I've been talking to few Brits about it. The government is doing many popular short term changes and calling and election. The reason, according to those people, might be because they expect a major drop over party acceptance after that. This could be linked to recent news as the government announcing smaller inflation rates, attacks against legal and illegal immigration and conservative gender policies. They expect to reach fed up people that might react to voting with them (without remembering most of those policies were established by that party) with BoJo.

I know this is a slice on the opinion of a small set of people, but I still find interesting that this might mean that the government might still be willing to postpone certain measures for effect of the election.