Jacob Rees-Mogg has done very well out of Brexit. Not financially, the fiercely passionate Conservative Brexiteer is keen to point out.

Rees-Mogg's political stock has soared among Tory party members ever since Britain voted to leave the EU two years ago. Yet Somerset Capital Management, the investment company Rees-Mogg co-founded in 2007, has come under scrutiny for launching a new investment vehicle in Dublin as Britain prepares to leave the European Union.