Key Facts

• The by-election took place in Holborn and St Pancras.
• Labour won the election, defeating the Green Party.
• The Green Party passed a motion at its conference defining Zionism as a form of racism.
• The motion described Zionism as an ideology supporting a Jewish state based on ethnicity.
• Green Party leader Zack Polanski’s position on this motion is unclear and has raised questions.
• Chris Mason, BBC Political Editor, highlighted the remaining questions about Polanski’s stance.
• The article is focused on UK politics involving the Green Party and its internal debate on this topic.