Clinton campaign aides have also privately voiced frustration at how those same circumstances have rendered them unable to make full and open use of their aggressive skills at a time when Hillary's bid for the nomination have lost momentum.
Under Luxembourg's law the owner of more than 33% of a company is obliged to make a full bid for the firm, but the duchy's regulator made an exception for Mr Mordashov.Arcelor says these worries are unfounded, because Mr Mordashov does not have the cash to take over all of the company.
The move immediately revived last week's speculation that the sovereign wealth fund might raise its 26% stake in J Sainsbury, or perhaps even make a full bid.
North Sea oil specialist Venture Production jumped 154p to 734p after Centrica, up 0.75p at 247p, bought a 22% stake and suggested it may make a full bid which would value the business at more than £1bn.
However Citigroup said that there could be more to go for with Rio, especially if its iron ore joint venture with BHP Billiton falls by the wayside, prompting BHP to make another full bid for its rival.
That will allow Mr Pinault's PPR to make a full bid for Gucci, though any takeover will be checked by strict limits on PPR's future boardroom control.
This requires that, if shareholders accounting for more than 30% of the voting rights are found to have been "acting in concert" to precipitate an event, such as the removal of board members, then they must make a full bid for the firm, or face a fine.
If either Kroenke or Usmanov raise their stakes to 30%, they will be obliged to make a full bid for the company under London takeover rules.
But in late April the rumor mill began whispering that a third Dutch financial power, the bank/insurer ING Group, may split its banking operations from its insurance business, leaving the bank to make a full bid for ABN Amro.
The scuttlebutt in London's financial district has Glazer on the point of making a full bid for the club.
