Ed Davey uses bungee jump to hail ‘once-in-a-century election’

Lib Dem leader says public's dislike of Tories and tactical voting offer chance to change UK's political geography

• UK election live - latest updates

Tactical voting and disaffection with mainstream parties make this Thursday a once-in-a-lifetime general election that could reshape the political landscape for decades, the leader of the Liberal Democrats has argued.

With a series of smaller parties expected to make breakthroughs in terms of vote share and seats, Ed Davey said the Lib Dems seemed poised to entrench themselves in a swathe of formerly Conservative territory, particularly in the south.