Rejecting Republican nominee Donald Trump's personal physician's declaration that he would be "the healthiest individual ever elected to the presidency," Green Party candidate Jill Stein told Politico that the real estate mogul "has a lot of problems — physical, mental, emotional, cognitive."

Stein, who is a doctor, said that Trump's regular changing his mind on what position to take on a whole range of important issues is not the usual calculating of a politician, but erratic behavior that shows "he's incapable of having a consistent thought or policy…. the guy may have a memory problem. Who knows what it is?"

Stein also slammed Trump for his refusal to release his tax returns, saying that "he's a magnet for crime and extortion."

The Green Party nominee flouts conventional wisdom by insisting in the Politico interview that she is taking votes away from Trump because she is attracting many Bernie Sanders diehards who would not vote for Democratic nominee Hillary Clinton and could have cast their ballot for the Republican candidate instead.

She also goes against the grain by saying that Clinton is the greater threat if elected, because Trump, with his inexperience and bumbling, "will have a lot of trouble moving things through Congress. Hillary Clinton, on the other hand, won't.

"Hillary has the potential to do a whole lot more damage, get us into more wars, faster to pass her fracking disastrous climate program, much more easily than Donald Trump could do his."