Labour suffers by-election loss, Green Party celebrates significant victory

Here is a rewritten version of the news article in a neutral newsroom style:

Labour Party Loses By-Election, Green Party Gains Seat

The Labour Party has suffered a loss in a by-election, with the Green Party emerging as the winner. The result marks a significant shift for the party, which had been expected to perform well.

According to reports, Keir Starmer, the leader of the Labour Party, described the outcome as “very disappointing”. Meanwhile, the Green Party’s leader hailed the win as “seismic”.

The by-election took place in a constituency where disaffected Labour voters were believed to have played a key role in the party’s defeat. The Green Party’s shift to the left appears to have resonated with these voters.

The new Green Party MP has been elected after a career change from being a plumber. The party’s victory marks a significant milestone for the group, which has seen its popularity grow in recent years.

In related news, Prime Minister Keir Starmer’s Labour Party came third in the by-election, suffering a major blow to his leadership.

Source: Google News World