Boris Johnson put Tory donors into the House of Lords at twice the rate of any other prime minister in the last decade, with the party taking £17m from peers he appointed.
Of the 50 Tory peers nominated during Johnson’s time as PM – 14 were either already party donors or went on to donate money.
One campaign group told openDemocracy the findings show “the current system is not fit for purpose” and said giving party donors roles in the Lords “corrodes trust in our democracy”.