I keep getting this throbbing in my trick knee that suggests that special counsel Robert Mueller might be able to answer the question that has been bugging millions of Americans like me.

What is in Donald John Trump’s tax returns, the returns he refuses to release for public inspection?

That ol’ trick knee of mine suggests that Mueller has obtained those returns as part of his investigation into “The Russia Thing.” Trump won’t release them, making some sort of phony claim about being under audit by the Internal Revenue Service.

Of course, Mueller has substantial authority to get a lot of information that doesn’t come out through regular channels.

I’m waiting with some anxiousness for Mueller to finish this probe while telling us what many of us want to know: Are there business dealings in Russia that Trump wants to keep hidden from the public?