Jake Paul says Tony Hinchcliffe's recent Puerto Rico jab was a low blow ... ripping the comedian for comparing the island to trash in a lengthy video in support of Donald Trump.
El Gallo -- who moved to Puerto Rico in 2021 -- made his feelings crystal clear in a passionate pro-Trump speech on Thursday ... calling on his millions of followers to do their own research before exercising their right to vote.
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But before Paul listed his many reasons for backing No.