These particular duplicate tweets (and others) were posted by @SunnQuest123, @GodMgga, @barbwire975, and @Sunnquest123W, a quartet of accounts who in a total coincidence all follow each other (and each account's first followers are the previously created members of the network). 
The accounts in this network frequently duplicate both tweets and memes within and across accounts, with the text color/formatting on the memes occasionally changing. Three of four accounts are presently using variants on the same meme about voting as their pinned tweet.
Are these four accounts bots (automated accounts)? It's possible, but the accounts are sufficiently low-volume that a human could easily pilot all four, and the tweets are (allegedly) sent via the Twitter website and Android app, so we're thinking sockpuppets are more likely.
The four accounts in this network most frequently retweet each other and major right wing accounts such as @realDonaldTrump, @GOPChairwoman, and @RealCandaceO. They reply to pretty much the same set of right-wing accounts, but do not reply to or tag each other.
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