Lol, Reagan hated communism, not Russia. He'd probably be close to DeSantis' position if still alive.
I don't know why Reagan would choose Russia over NATO, regardless of whether or not the USSR and the Cold War still exist.
He wouldn't be pro Russia like Trump but he'd mostly just stay out of it and provide minimum level support to Ukraine at best. Russia is no longer communist so he wouldn't care that much. A 2023 Reagan would be extremely focused on China.
If someone like Reagan was in the WH , Russia never would have invaded Ukraine to begin with . The fact is Obama’s FP , Trump’s FP and Biden’s FP in 2021 were all pretty weak towards Russia and in general trying to not seem as neocon as possible which made Russia think the US was weak .
This would not have been the case with Ronald Reagan whose FP in general would be far more aggressive than our FP since 2008 but at the same time wouldn’t be anywhere near as dumb or incompetent as Bush era neocons as well.
(Yawn) I wondered what line of tripe you were going to argue to be Ron's boot licker yet again. So the here is really not to say it is for wanting to basically cut Ukraine's Lifeline off, but bidens fault because he "let" Rusdia invade, after Obama was supposedly "soft" on russia, compared to Trump's policy which was basically for long years of non-stop public fellatio of Putin. Totes makes sense to me. 
I blamed Obama , Trump and Biden for all being weak because the Bush years had an unfortunate side effect in American politics of being against any preemptive actions/responses whatsoever . Yes though Obama was extremely weak on Russia from 2009-2014 after Russia already invaded Georgia because liberals created the idea in the Bush years that American aggression was to blame for all the world's problems
Imagine being such a partisan hack to look back from 2009 through 2020 and decide that it was the Obama Administration with a record of being overly accommodating to Putin. 
Obama was weaker on Russia than Trump policy wise and that’s just a fact . Obama after Russia already invaded Georgia did the whole Russian reset policy and attacked Republicans for being too tough on Russia .
And yet he was tougher on Russia than Bush.