Within months of that vote, newly elected President Nicolas Sarkozy – who Le Pen had attacked as being “foreign”, because of his Greek, Jewish and Hungarian ancestors – seized on the FN’s main campaign themes of national security and immigration in legislative elections, and stated openly that he intended to go after FN votes.

It swept the rug out from under the FN. Le Pen’s party failed to pick up a single seat in the National Assembly and, dogged by financial problems, he announced plans to sell his party headquarters outside Paris.

In 2011, he resigned as party leader and was replaced by his daughter, Marine.

Father and daughter fell out almost immediately. Marine le Pen consciously moved the party away from her father’s more extreme policies, to make it more attractive to Eurosceptic mainstream voters.

Then the relationship shattered irreparably.

In 2015, Jean-Marie Le Pen repeated le détail, his Holocaust denial, in a radio interview. After months of bitter legal wrangling, FN party members eventually voted to expel their own founder.

Two years later, during her own presidential campaign, Marine changed the party name to Rassemblement National, or National Rally.

Her father condemned the move as suicidal.