The political divide in America is all part of Putin's long game. Right now, the divide is not so much Republicans versus Democrats, as it is people who fell for his scam versus people who didn't.
Oh! I'm glad you brought this up!
I saw him getting Trump elected as a weakening of the country in general and Trump's anti-NATO stance a weakening of western resolve in general.
But Putin has always played a long game against bigger opponents, he's very very good at it.
Right now, nobody in the world has any idea what his end game could be. He might very well be a genius, but he is an evil genius of the sort that we need The Batman or Captain Marvel to rescue us from.
Putin might have some very real grievances against the West and NATO.
Don't care.
It's no excuse for murder and devastation of your neighbor.