David Cameron has declined to reveal whom he has invited to dinner at No.10 - a request made in the wake of the donor row - saying it is "private".
But the prime minister promised a "proper inquiry" into donations after the resignation of Tory co-treasurer Peter Cruddas.
Mr Cruddas has quit after Sunday Times reporters filmed him saying donations to the Conservative Party could ensure access to Mr Cameron.
The BBC's Andrew Fagg reports.
But the prime minister promised a "proper inquiry" into donations after the resignation of Tory co-treasurer Peter Cruddas.
Mr Cruddas has quit after Sunday Times reporters filmed him saying donations to the Conservative Party could ensure access to Mr Cameron.
The BBC's Andrew Fagg reports.
