Simplify the following text for a Grade 8 native English-speaking person.
Original: Marinetti founded the Futurist Political Party ( Partito Politico Futurista ) in early 1918 , which was absorbed into Benito Mussolini 's Fasci di combattimento in 1919 , making Marinetti one of the first members of the National Fascist Party .
Simplified: Marinetti was one of the first members of the National Fascist Party .