Socialist presidential candidate for the upcoming French presidential election Francois Hollande, right, looks at some of the 2,500 photographs of young Jews deported from France during WWII, as he visits the Shoah Memorial in Paris,
Sarkozy also rebuffed leftist critics who compared his campaign rhetoric to that of France's Nazi collaborators, reviving ugly wartime memories in what has been a particularly bitter presidential race.
Polls predict Sarkozy will lose the May 6 runoff to Socialist Francois Hollande, who promises government-funded jobs programs and higher taxes on the rich — pledges that resonate with a recession-weary electorate.
Both men staged rousing rallies Sunday on opposite ends of the country, with Hollande sounding victorious already and Sarkozy calling for Europe to protect its civilization.
Although no evidence has emerged that the funding ever took place, French website Mediapart reported Saturday that it had obtained a 2006 Libyan document signed by Gadhafi's then-intelligence chief Moussa Koussa with an offer by the regime to spend €50 million ($66 million) on Sarkozy's campaign.
"It's a setup, it's a slanderous remark," Sarkozy said on Canal Plus television Sunday, accusing Mediapart of being a mouthpiece of the left.
Hollande's campaign team urged judicial authorities to investigate, as did Segolene Royal, the runner-up in the 2007 race.
Supporters of the Socialist leader gathered Sunday for a rally in Paris where Hollande said his presidency would be a "refusal of austerity."
He wants to renegotiate a hard-fought European treaty on budget tightening, saying economies need more government stimulus. Critics say his plans will dig France deeper into unsustainable debt.
"We have to change the orientation of Europe. Things are starting to move," Hollande said.
Earlier in the day, Hollande honored Jews deported during World War II, visiting a memorial and museum to the Holocaust in Paris and praising the museum's work as crucial "for Jews and for humanity."
Some 76,000 Jews, but also thousands of gypsies and others, were deported from Nazi-occupied France to concentration camps during World War II, and the overwhelming majority never returned. Since the 1950s, the last Sunday of April has been a special day when France honors those deported.