NOt to excuse Russia but I bet the USA routinely hacks and interferes in the elections of other countries. I bet almost ALL countries try it or do it.
We know for a fact that Obama spent hundreds of thousand of US tapayer dollars in the Israeli election attempt to defeat Benjamin Netanyahu.
https://www.washingtontimes.com/news/2016/jul/12/obama-admin-sent-taxpayer-money-oust-netanyahu/