Infighting in Nicolas Sarkozy's party spells defeat at parliament elections According to the Opinionway poll, the UMP would garner 31 per cent of the vote with Marine Le Pen's FN tallying 16 per cent. While this would give the right biggest proportion of the vote, the UMP has ruled out any alliance with the FN even though polls have shown most of its voters are open to such a deal. Mr Sarkozy's prime minister, Francois Fillon, now replaced by an interim Socialist prime minister in place at least until the parliamentary election, stirred hostilities within his own party on Wednesday when he said the UMP had "no natural leader." His comments, undermining UMP boss Jean-Francois Cope, could be the first shots in a battle to be the next conservative presidential candidate. If candidates poll more than 12.5 per cent in the first round, they move on to the June 17 run-off. Were candidates from the National Front, Left and UMP all to qualify, the ensuing three-way contest would be won with a simple majority. The survey was based on interviews with 1,836 adults carried out between May 23-25.