This makes no sense, All of the right is going to vote for trump NO MATTER WHAT anyone says, the only group that is avaliable to be swayed is the Liberals, and at this point, as seen by this post, they already have their mind made up that Putin wants the other guy to win, so no matter what he says it is some 4d chess to get trump elected. The simplest answer, is that for what ever reason, weather it be stability, or biden having dementia or what ever, he would rather a biden presidency.