"The main goal of the Russian propaganda and misinformation effort is to divide America by using our institutions, like free speech and social media, against us. It has stoked fear and hatred amongst [sic] Americans," he wrote on the social site.
"It is working incredibly well. We are quite divided as a nation," he added.
https://www.cnbc.com/2018/02/17/facebooks-vp-of-ads-says-russian-meddling-aimed-to-divide-us.html