In the 'Vote on Nuclear Deal' a loss of vote for the Congress would, in fact, be a win for the Congress as then Congress would approach the Indian voter on this issue. Indian voter knows that the nuclear deal is in the best interest of the Country. In fact India cannot do without it. India has a lot to lose by not going in for the nuclear deal. The BJP is opposing as it is unable to consume that the Congress is going to win laurels and take the credit for a deal initiated by the BJP.
Indian voter would see unmasked face of the BJP votes against the deal. If the Congress approaches the voter on this issue, it would have voter's support and oOther issues like rising inflation numbers would be then forgotten.
So why should the Congress indulge in horse trading once it knows it is good for it to lose as also to win. It is a 'win win' situation for the Congress.
Those voting against the nuclear deal would lose heavily in the 'people's vote' on this issue as the Indain voter would punish it badly.
As far as Som Nath Chatterji's remarks are concerned, his remarks are to be seen in his capacity as a Marxist and not as the Speaker of the Lok Sabha. He is a progressive Marxist and can see the good of nuclear deal and is not blind like Karat who gives more importance to his ego than to the good of the Country.