Marcucci began his political career at the age of 25 in 1990 when he became a provincial councilor of the Province of Lucca with the Italian Liberal Party, with which he is elected deputy in 1992.

[1] In 1994 he returned to entrepreneurial activity and held various positions in companies in the pharmaceutical and tourism sectors owned by his family.

[citation needed] In 2006 he failed the election as senator with The Daisy, but becomes Undersecretary for Cultural Heritage in the Prodi II Cabinet.

[citation needed] He was very close to former prime minister Matteo Renzi, he was the PD group leader at the Senate between 2018 and 2021.

[2] Following the election of Elly Schlein as party leader in 2023, Marcucci left the PD and joined the European Liberal Democrats.