Putin was so mad at Obama err the world too 2010, 2011 because Obama policy tanked the dollar.
19 Jul: Conrad Black: Trump Will Win This Round With the Deep State
http://www.conradmblack.com/1412/trump-will-win-this-round-with-the-deep-state
I think what happened to sour Putin against the USA is that while Obama (and Hillary) claimed they wanted to “reset” Russian relations - his administration was involved in the coup against the Ukrainian government in 2013/2014 (with Soros aid) and added Ukraine as well as several Eastern European countries under NATO. They also supported opposition candidates against Putin within Russia. From the Russian perspective, those are old Cold War type actions against their country. Is it really surprising then that Putin would reciprocate? This is the context which I think is missing from the current hysteria about Russian meddling.
It really is quite hypocritical of the US to be so outraged over 2016 when for the last decade we’ve been giving it to Putin in spades.