“Facebook always was hugely important to Trump in his political rise and reign. Twitter, which has booted him forever, tended to be more front and center — it was for Trump a rough, running focus group, and a real-time, utterly un-private diary. But if Twitter was the loudspeaker, Facebook was the less flashy but nonetheless critical organizing, advertising and fundraising infrastructure. Compared to Twitter’s noisy café, Facebook was the underground pipes. It’s hard to see how Trump would have become president without it.
“I understood early that Facebook was how Donald Trump was going to win,” Brad Parscale, the digital media director on Trump’s 2016 campaign who then started as his campaign manager in 2020, said in 2017. “Facebook was the method — it was the highway which his car drove on.”
“… large numbers of conservative voters, ability to broadcast all day, multiple times to the same audience, and the numbers were showing in the consumer side that people were spending more and more hours of their day consuming Facebook content,” he said in 2018. “Being able to show a message directly from President Trump talking… talking directly to camera was very important. I could get it right there not filtered by the media, not filtered by anyone. It was his face. It was the person you wanted to hear from talking directly to you.”
A New Yorker headline in March of 2020 referred to “Trump’s Facebook Juggernaut.”
“He arguably has the best fundraising list in Republican politics right now, which means he has the best email lists and text messaging lists, but there’s a half-life on that — because people change emails, change cell phone providers. So it’s important that he keeps filling that pipeline with new contacts, and that’s where Facebook comes in,” Wilson said, noting that polling he’s done suggests that 60 percent of voters log on to Facebook every day.”
https://www.politico.com/news/magazine/2021/05/05/trump-social-media-supporters-485381