London Mayor's Race Exposes Ugly Faultlines

Londoners go to the polls Thursday to elect a new mayor, in a bitterly fought election that has laid bare tensions and divisions within British party politics. Polls show Labour's Sadiq Khan, a former government minister, poised to defeat Conservative Party candidate Zac Goldsmith, the environmentalist scion of a billionaire businessman, after a campaign marred by accusations of smears related to Khan's Muslim faith and now, a worsening feud in the Labour Party over anti-Semitism.