To clear the air, I offer this handy guide to things not to do re: Russia.
Whereas the old standard was to avoid impropriety or the appearance of impropriety, I recommend everyone do NOT-
Assume plane spotters will not notice that a Russian oligarch is shadowing your campaign tour.
Borrow large sums of money from Russian banks and oligarchs.
Collude with Russia to hack/release e-mail and data on your political opponents.
Dispatch a shady envoy to Moscow with a recorded message, which can later be used as blackmail, offering to drop sanctions.
Echo Russian talking points about U.S. sanctions, NATO, Crimea, Ukraine.
Establish a server, which communicates exclusively with a Russian bank; instruct one of your future cabinet members to do likewise.
Meet with Russians and then lie about it on federal background check forms/affidavits.
Meet with Russians and then lie about it to congress (esp. under oath).
Personally and through your surrogates, employ Russian Active Measures.
Sell property to Russian oligarchs at inflated over-market prices.
Surround yourself with political operatives, many of whom have atypical and zealously concealed ties to Russian intel.
While staying in Moscow, assume your room is not being surveiled.
Work the halls of congress as an unregistered Russian agent. (Let alone register after the fact)
Care to suggest anything else be added to these new/old best practices?