Hundreds of thousands of Puerto Ricans filled miles of a major highway in San Juan in protest against Gov. Ricardo A. Rosselló, who has resisted persistent calls for his resignation, in what appeared to be one of the largest demonstrations the island has seen.
The protests arose in response to the leak of Telegram app messages in which Gov. Ricardo Rosselló and his inner circle make light of the casualties caused by Hurricane Maria and disparage political opponents using vulgar, homophobic, and sexist language. They began July 11 and subsided around July 24, 2019.
Gov. Ricardo A. Rosselló of Puerto Rico finally announced his resignation (for August 2, 2019), conceding that he could no longer credibly remain in power after an extraordinary popular uprising and looming impeachment proceedings had derailed his administration.
There are many accounts of the protest on various media and grassroots outlets, but here is one article: https://www.vox.com/2019/7/20/20701898/puerto-rico-protests-ricardo-rossello-resign-ricky-renuncia-text-scandal