A court challenge remains hanging, but the Federal Communications Communication nonetheless says it’ll implement a national “Do Not Call” list starting tomorrow (Wednesday). Iowa U.S. Senator Charles Grassley says the senate has spoken, twice, on the matter and he agrees with the decision to begin banning telemarketing calls to those who’ve said they don’t want them. Grassley acknowledges the list sets different rules for businesses calling people at home than charities and some others will abide by. He says politicians, nonprofits and other organizations having different free-speech rights than commercial contacts may indeed be a constitutional matter. But if there’s a problem, Grassley doesn’t see it. He says he thinks it’s O.K. to have different rules for political and commercial speech, so the Supreme Court may have to make a final decision, and that will determine what the Federal Trade Commission does with the no-call list in the long run.