Douglas Carswell told MPs that talk of withdrawal was now a "mainstream" rather than a "maverick" view.
"The real obstacle is Nick Clegg and we can overcome that, " said Douglas Carswell.
Eurosceptic Tory MP Douglas Carswell urged Number 10 to bring forward legislation for a referendum.
BBC: PM promises 'proper choice' on EU after Lawson comments
Other supporters of the process include Tory backbencher Douglas Carswell and Labour former minister Frank Field.
She was held in a federal detention facility in Carswell, Texas until November 1996.
But, in a message on Twitter, Conservative MP Douglas Carswell cast doubt on the US intervention.
BBC: UK risks 'turning inwards' over EU referendum - US official
Mr Carswell confirmed earlier he had 15 signatures from "highly respected Parliamentarians from right across the political spectrum".
The families gave notice that they would be challenging the original judge, Northern Ireland Lord Chief Justice Sir Robert Carswell.
However, Tory Eurosceptics don't see it that way - see, for example, John Redwood or Douglas Carswell's blogs.
Mr Carswell has written to the prime minister, challenging him and frontbenchers of all sides to support his Ten Minute Rule Bill.
Simon Carswell, Wellington, Shropshire: I was present at the birth of both my children and I wouldn't have missed it for the world.
Another Conservative MP, Douglas Carswell, said there were "policy lessons" to be learned and questioned why the party was on a "long march of defeat".
BBC: Eastleigh by-election: Cameron vows to 'win people back'
Uber rebel Douglas Carswell dislikes the term "rebel", since he believes he is doing his duty, by voting his conscience, and is not defying legitimate authority.
Conservative Douglas Carswell, a well-known Eurosceptic, told MPs they faced a straight forward choice: vote to give people a referendum or vote not to trust the people.
Tory backbencher Douglas Carswell quoted Mr Osborne telling MPs last year that Britain would not contribute money to bailout the eurozone "either directly or through the IMF".
Mr Carswell also told MPs the debate was the first in Commons history to have been "crowd sourced" after the subject of it was selected by readers of the Guido Fawkes blog.
Their leading light is Douglas Carswell who made his name in the last parliament calling for the resignation of Speaker Martin, when few other MPs dared put their head over the parapet.
Neil Mellor, a currency strategist at Bank of New York Mellon, said Mr Carswell's plan would have to be executed on a massive scale for it to have any impact on the economy.
British parliamentarian Douglas Carswell, a member of the ruling Conservative Party and staunch free marketeer, says this sense of judgment is key, and enables us to hold those who make decisions to account.
With Darran Lindsay, William and Robert Dunlop, Stephen Thompson, John Burrows, Davy Morgan, Keith Amor, James McBride, Les Shand, Mark Parrett and Gary Carswell also among the entry the action promises to be fast and furious.
Although Friday's debate on Mr Carswell's bill only lasted about half an hour - due to parliamentary scheduling - MPs hailed it as a symbolic moment and one claimed those present were "making history" by even discussing the issue.
Mr Carswell has hard-edged views on everything from economic management (he's very worried about inflation) to defence procurement (he thinks the British arms industry is taking the taxpayer for a ride) and he's not shy of expressing them.
Writing on his blog, Conservative MP Douglas Carswell contemplates life outside the EU, suggesting it would lead to higher living standards, a more competitive economy, a greater share of global trade, more democracy and more dispersal of powers.
Given the first two bills are pretty chewy, I doubt there will be much time left for Mark Hendrick's International Development (Official Development Assistance Target) Bill, still less for Barbara Keeley's Social Care (Local Sufficiency) and Identification of Carers Bill or Douglas Carswell's European Communities Act 1972 (Repeal) Bill, or the considerable number of other bills on the order paper.
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