I had a few comments that gathered over 1000 likes and all of the sudden within minutes there were 4000 dislikes. The Dems have hired companies that have simulate disliking through a server. I wrote to DM and they said they are aware of the problem.
When Democrats are complaining you know that TRUMP won the night! =)
There are fake profiles on Facebook that certain parties control. With a simple command, the zombie profiles will swarm and down vote as well as upvote per the will of their master.
Twitter is even worse.