Tory Rebel David Davies MP said David Cameron's negotiating leverage has been cut to smithereens.
He made the comments on the Andrew Marr Show, ahead of Cameron's trip to Brussels on Thursday for a two-day summit to thrash out the multibillion-pound EU budget.
When asked whether the PM would be able to secure a budget freeze, Mr Davies said: "One of the problems is his veto, his final recourse, is actually rather weak. That means your negotiating leverage is cut to smithereens. That's where he is.
"He's got pretty much the whole institutional structure against him. They at least want to have an inflation protected budget, which is ridiculous when you look at what they are demanding.
"If you look at what is happening to Greece and Portugal and frankly everyone. For them to be protected really smacks of as an international gravy train par excellence."
More top news
Nineteen people have been rescued from the English Channel after the inflatable boat they were in started taking on water.
Leishang Cosmetics said it strongly condemns racial discrimination but blamed foreign media for the "over-amplification" of the advert.
The public voted the ITV show ahead of last year's winner EastEnders, as well as Coronation Street, Doctors and Hollyoaks.