David Agren writes at Americas Quarterly about the similarities between Donald Trump and Andrés Manual López Obrador. More important than the comparison itself is the recognition that Mexicans are talking about this. A lot. And Agren concludes that it may well be that Mexican elites fear AMLO more than they fear Trump. This makes sense, because AMLO directly threatens the positions of Mexican elites, while Trump does not.
AMLO himself doesn't see any similarities with Trump, though no sane person would.
As for AMLO himself, he thinks the comparisons to Trump are simply an attempt to associate him with the foreign villain du jour. Following the third presidential debate, he was dismissive of any claims of similarity. “No manchen,” roughly translated as “gimme a break,” he tweeted.
Now who does that remind you of?