"The [Green Party] has shown some interest," the 67-year-old former Governor of Minnesota told us at LAX ... "I haven't made a decision yet because it's a long time off."
But ... here's where things get good.
"If I do do it, Trump will not have a chance," Ventura says.
"For one, Trump knows wrestling. He participated in two Wrestlemanias. He knows he can never out-talk a wrestler, and he knows I'm the greatest talker wrestling's ever had."
"So, if I go for it he's history, and he knows it!"
That's not all ... Ventura says he's also been keeping his body in great shape and showed us his "6-pack" abs to prove it.
In fact, "The Body" pointed out that Wrestlemania is rumored to be coming to Minneapolis next year -- and says if WWE was smart, they'd call him up to participate.
Bottom line -- Ventura could have a very busy 2019.