Answer: With the help of King Victor Emmanuel III.
Step-by-step explanation:
The political situation in Italy in the early 1920s was unstable. Mussolini did poorly in the 1921 election. However, he decided to organize a protest march towards Rome from the Italian city of Naples. More than 60,000 fascists and followers of Mussolini's party took part in the march. With the help of the army, the king could have prevented the protests of the fascist party, but he did not want to make the situation worse. When he met with Mussolini, he gave him the position of prime minister.