"Putin challenges Washington in Venezuela power play" lets false propagandists have a field day.
There is zero probability that Putin is willing to undercut Maduro to make a deal with Trump. That is not how Putin operates at all and never has been.
Putin is working to stop US regime changes because those regime changes always destabilize things and always work to enrich the destabilizers in the US: the neocons and fake libertarian capitalists, such as the Koch brothers.
Putin knows damn well that the US imperialists have their eye on Iran, then Russia, and finally China. They want it all for themselves, not for the People anywhere. It's all about greed, violence, and depravity.
Putin knows that if the US isn't stopped, Russia will fall and not get out of it.