Get behind a wealth tax, millionaire urges Lib Dems

A campaigning "patriotic millionaire" has urged the Liberal Democrats to get behind a new wealth tax, as the party debates how to position itself on the economy.Mark Robinson, who joked to activists he was the "most left-wing man in commercial real estate", welcomed the party's call this week for a windfall tax on big banks.But he argued the projected £7bn a year raised under the policy was a "drop in the ocean"…