Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Social Media Companies Battle Evolving Threat Ahead of 2020 Election Katherine Gypson Top social media companies Google, Facebook and Twitter told U.S. lawmakers Thursday that foreign interference on their platforms has evolved significantly since the 2016 presidential election. The House Permanent Select Committee on Intelligence heard how these companies are adapting their approaches to combating disinformation as COVID-19, Black Lives Matter protests and the upcoming 2020 presidential election present opportunities for the exploitation of partisan political differences in the United States. .