The party was founded as the
Democratic Front of Francophones (
Front Démocratique des Francophones, FDF) on 11 May 1964 as a response to the
language laws of 1962. The party had instant success in
Brussels: it first contested parliamentary elections
one year later, where it won one senator and 3 seats in the Chamber of Representatives for the
constituency of Brussels. Its number of seats increased further in the subsequent parliamentary elections. The party also dominated Brussels' municipal politics until 1982.
Antoinette Spaak became the first woman to lead a Belgian political party when she was elected to lead the FDF in 1977. Initially the party cooperated with the
Walloon Rally. From 1977 until 1980, the FDF participated in the federal governments led by
Leo Tindemans and subsequently
Wilfried Martens. From 1992, the FDF regularly competed in electoral alliance with the larger
Liberal Reformist Party (PRL). In 2002 the PRL, the FDF, the
MCC and the
PFF formed the
Reformist Movement (MR), a closer alliance of Francophone
liberal parties. In January 2010 the party name was amended to
Francophone Democratic Federalists (
Fédéralistes Démocrates Francophones), maintaining its original acronym. In September 2011, the FDF decided to leave the alliance over disagreements with MR president
Charles Michel on the agreement concerning the splitting of the
Brussels-Halle-Vilvoorde district during the
2010–2011 Belgian government formation. The party adopted its current name, DéFI, in November 2015. ==Ideology and policies==