They meddled in our (and every other country's) election.
And we meddled (even publicly, remember Obama and Brexit? or Israel) in just as many elections.
And maybe some on this site are shocked (Shocked!!) to know we recently killed dozens (hundreds?) of Russian combatants in the proxy war that we are not currently involved in.
Yes, their are many types of warfare we are engaged in, and Russian is also. That is what they do, and that is what we do. And have for decades, with Trump, Obama, W. Bush, Clinton, HW Bush, Reagan, Carter, Nixon,....