are you indicating he might be a Russian asset ?? (gasp) not after he has built a whole business network over there and had no scruples to hire a man who was directly responsibly for installing Yanukovich (in Ukraine) as his campaign manager?

I do not think Trump is even capable of caring because that would imply he has some kind of intelligence. Considering he isn't able to write a tweet that isn't all CAPS-LOCK and riddled with grammar/spelling errors, no I don't think he cares.

The actual reason Trump doesn't care is because Trump thrives on chaos. He doesn't shine with intelligence or making good arguments. He feeds of disarray and chaos. I don't mean to say he does a good job bringing structure to chaos. But he knows that as long as everyone is up in arms over every tweet they're not thinking clearly and that is (as far as "Trump the man" is concerned) his only advantage. It's a huge one though.

He (Trump) certainly has no interest on shining a light on the Russian activities. At least not if it concerns him or his crooked son/family.