He attended high school at the Liceo Classico Paolo Sarpi in Bergamo, where he became a member of the secularist and reformism student group "Action and Freedom".

[6] In the centre-left primary election in February he gained 58.5% of votes beating the civic Nadia Ghisalberti and Luciano Ongaro (member of Left Ecology Freedom).

[8] On 1 June 2017 Gori announced his intention to run as centre-left candidate to the Presidency of Lombardy[9] in the Lombard regional election of 4 March 2018.

Gori's principal rivals were Attilio Fontana (LN, supported by center-right coalition) and Dario Violi (M5S).

[11] Term-limited in 2024, Gori ran for European Parliament as number two candidate on the Democratic Party list in Northwest Italy constituency.