This is risking a serious organisational rift in the Conservative party, with MPs complaining that Lord Ashcroft is unelected and unaccountable.
Tory concerns at the growing influence of Lord Ashcroft have been heightened by a memo to candidates from the billionaire peer instructing them on how to run their election campaigns.
The former party treasurer has stamped his authority on the Conservative campaign machine with a letter ordering officials and candidates in target seats to be ready for a possible October election.
The mass email has fuelled concerns among some MPs that the tycoon has established an alternative power base in the party. Lord Ashcroft has moved into a large office in Conservative Campaign Headquarters in London's Millbank from where he will run the party's strategy for target seats.