You scratch my back ...

Good afternoon. Here's what you need to know to end your day.

The jostle for position in the U.K. election is underway. Opposition parties are split over tactics in the event of a hung Parliament. Scottish National Party leader Nicola Sturgeon hinted she may support Labour's Jeremy Corbyn as prime minister if it kept the Conservatives from office. But Liberal Democrat Leader Jo Swinson "categorically" ruled out helping Corbyn into power. As always, follow the action with our Election Update.