He doesn't want to sink it. Trump is useful to him.
Trump is REALLY useful to him, despite the fact that Trump:
1) Put Sanctions on Russia
2) Expelled hundreds of Russian diplomats
3) Bombed his allies (Syrian) Sold Javelin missiles to his enemies
4) Strengthened NATO
5) Became a solid competitor for energy
7) Castigated Germany for doing energy deals with Russia
Right? If you STILL believe this you are beyond ideological and are irredeemably stupid.