Original sentence: De facto, appointments tend to respect the national custom of balances between the Flemish and French-speaking communities as well as between the 'ministeriable' political families: mainly Christian-democrats, Socialists, Liberals, also (moderate) Nationalists, occasionally an Ecologist)
Edited sentence: De facto, appointments tend to respect the national obsession of balances between the Flemish and French-speaking communities as well as between the 'ministeriable' political families: mainly Christian-democrats, Socialists, Liberals, also (moderate) Nationalists, occasionally an Ecologist)