Trump has actually been incredibly damaging to Russia already. Keep in mind the USSR went down because of economics not military and Russias economy is kept afload by oil and natural gas.
1. Trump offered to sell missile defense tech to Poland
2. Trump easing restrictions on EPA leads to more oil leads to lower oil prices. How did Venezuela screw itself again?
3. Russia is pretty much the sole distributor of energy to the Visegrad nations. Trump offered to sell them natural gas too. Russia cant jack up prices anymore.
4. By giving SA free rein in the Middle East they unite the Sunni world against Iran Russias principal ally. They are going after them the same way (economic). Qatar shares the worlds largest natural gas field with Iran. Once that is shut down (will be one of the goals of the blockade) irans economy dies.