Far-right leader is convinced that, come May 7, France will have its first woman president.
But while Le Pen senior never seemed to truly covet the top job, his charismatic daughter is convinced that, come May 7, France will have its first woman president.
Over the past six years, her rebranded "party of patriots" has gone from strength to strength, propelled by the kind of anti-globalisation, anti-establishment fury that drove Britain's vote to leave the EU and Donald Trump's election in the United States.
But she never strayed far from her National Front's (FN) stock themes of immigration and Islamic fundamentalism -- hot-button issues after a string of jihadist attacks that have killed 239 people since 2015, including a policeman shot dead on Paris's Champs Elysees avenue three days before the election.
"With me there would never have been the migrant terrorists of the Bataclan," Le Pen told supporters in the final days of the campaign, referring to the Paris concert hall where dozens were killed in the November 2015 attacks.
As president, she says she would bring in an immediate moratorium on long-term migration until a quota system could be introduced.
Her hardline remarks marked a shift in her long-running campaign to purge the FN of the anti-Semitism and overt racism that were the party's hallmarks under her father.
Le Pen launched a drive to detoxify the party's image on taking over the party leadership in 2011 -- a canny move that swept the party to victory in European elections in 2014.
But on the campaign trail, she returned to the party's fundamentals, saying France bore no responsibility for an infamous round-up of 13,000 Jews in Paris during World War II by police acting on orders from the collaborationist Vichy regime.
Her remarks inevitably drew comparisons with the revisionism of her father, whom she kicked out of the party in 2015 for describing the Holocaust as "a detail of history".
A wounded Jean-Marie refused to go quietly, dragging the FN before the courts.
The split marked a turning point in the career of Marine Le Pen, who developed a tough shell after a tumultuous childhood.
When she was eight, a bomb ripped through the Paris apartment building where the family lived, slightly injuring six people but sparing the Le Pens.
Eight years later, her mother Pierrette walked out on her husband and three daughters, sensationally resurfacing shortly afterwards posing nude in Playboy magazine.
"It was a huge shock," Le Pen, who did not see her mother for 15 years, told an M6 television interviewer last year.
Now herself a twice-divorced mother-of-three, she keeps her private life out of the spotlight, appearing rarely as a couple with her partner, FN vice-president Louis Aliot.
The politician with the gravelly voice and flair for sharp putdowns started out as a lawyer defending illegal immigrants facing deportation as a state-appointed attorney.
Despite that experience she blames migration -- and the European Union -- for France's economic woes.
Le Pen has predicted the EU "will die" and has vowed to take France out of the euro and hold a referendum on membership of the union.
The proposal has caused alarm, with most polls showing the French against a "Frexit" or a return of the franc, fearing economic chaos.
Le Pen has downplayed the risks, accusing sceptical rivals and economists of scare-mongering.
The FN has come a long way since it was launched in 1972 as a refuge for paramilitaries who opposed France granting independence to Algeria.
It also drew apologists for the wartime Vichy regime's collaboration with Nazi Germany and ultra-conservative Catholics.
Under Marine Le Pen, the party has shown a more progressive face, promoting openly gay politicians and showing unmasked racists the door.
Critics, however, point to the role of several Le Pen aides who were once part of violent nationalist student groups -- and the recurring chant of "This is our land" at FN rallies -- as evidence that it still attracts hardliners.
Like Trump, Le Pen is proposing to pull up the drawbridge and restore French glory with a policy of "economic patriotism".
Besides leaving the euro she wants to pull out of Europe's Schengen border-free area, adopt a French-first policy on jobs and public housing and tax products from French companies that offshore factory jobs by 35 percent.
In the last presidential election in 2012 she finished third on just under 18 percent.