ANNOUNCER: Why won't Knute Buehler release his tax returns? We know Buehler's a millionaire who overcharged Medicare by 400 percent and violated ethics rules by hiding payments. Buehler owns 15 corporations but refuses to disclose what they make. Buehler even got huge tax benefits from a program he calls risky, scandalous, perhaps even criminal. No wonder Buehler refuses to release his tax returns – he doesn't want us to see his conflicts of interest. We can't trust Republican Knute Buehler.