Marion Marechal-Le Pen, the hardline niece of France’s far-Right Front National leader Marine Le Pen, is due to address a high-profile gathering of conservatives near Washington this week along with President Donald Trump.
Former UKIP leader Nigel Farage will also attend the annual Conservative Political Action Conference.
Ms Maréchal-Le Pen became France’s youngest deputy in 2012 but last year announced that she would not stand again for "personal and political reasons" and that she was temporarily withdrawing from political life.
The 27-year-old is more religious and socially conservative than Marine Le Pen, whose failed bid for the French presidency last year saw her anti-immigrant and eurosceptic party win its highest ever score at more than ten million votes.
Many see Ms Marechal-Le Pen as a potential future leader of the Front National party, which was co-founded in 1972 by her former paratrooper grandfather Jean-Marie Le Pen.
Magali Delporte / Telegraph
Her high-profile return to public life is scheduled for Thursday, when she will address the gathering of conservatives and Republicans shortly after Vice President Mike Pence.
Mr Trump is due to speak at the event, held at the Gaylord National Resort and Convention Center just outside Washington, on Friday.
In her speech to the CPAC, she will call for conservatives to join hands across the Atlantic, according to the French far-Right website l’Incorrect.
Ms Marechal-Le Pen disagreed with her aunt’s move to soften the image of the Front National – to distance it from its long-standing associations with anti-semitism, racism and xenophobia.
Political differences, combined with family tensions, between Marine and Marion last year are thought to have led Marion to step back from politics.
Reagan battalion I've come to respect you but do your research. This is Marion not her aunt. Marion is a classical liberal, a conservative https://t.co/fok5TSpcpP
— Matt Schlapp (@mschlapp) February 20, 2018
Ms Marechal-Le Pen was prominent in protests against same-sex marriage legislation being brought in by then Socialist administration in 2013 and is popular with the Catholic traditionalist wing of the party.
Matt Schlapp, the Chairman of the American Conservative Union, has defended her speech at the CPAC on Twitter, writing that she was more conservative than Mitt Romney and was "a classical liberal, a conservative".
President Trump’s former chief strategist, Steve Bannon, once dubbed Ms Marechal-Le Pen a “rising star,” and Sarah Palin confessed that she had a “political crush” on her.
Marine Le Pen has struggled since her election defeat to the centrist Emmanuel Macron last year to unite the party and admitted this week that she would be prepared to step aside for a better candidate in the next presidential election in 2022.
Click Here: cheap sydney roosters jersey