They can't tell you what Russia did to the US because they don't know. They don't know because it's completely made up. That's why Obama did nothing about it; there's nothing to be done against something that never happened.
The Congress usually flips to the party without the Presidency. These candidates won't be able to pass any of the crap they promise, and they know it, which is why they're promising it to any idiot stupid enough to believe the shit.