[2][7] The city's only public library closed, and Diossa organized members of the community to raise enough funds to have it reopened.

[8] Also in September 2012, Charles Moreau, Central Falls' mayor, resigned and pled guilty to federal charges of fraud.

[10] Under Diossa's leadership, Moody's Investors Service upgraded their rating of Central Falls city bonds.

[5] In January 2021, Diossa became a senior advisor at the Rhode Island Innovative Policy Lab at Brown University.

[13] President Joe Biden nominated Diossa to the board of trustees for the James Madison Memorial Fellowship Foundation in July 2021.

[15] Diossa defeated Stefan Pryor, the former state secretary of commerce, to win the Democratic Party nomination.

[16] He defeated James Lathrop, North Kingstown's finance director, in the general election on November 8.