Richard Shapero, a Kentucky attorney, applied to the state Attorneys' Advertising Commission for approval of a letter that he proposed to send "to potential clients who have had a foreclosure suit filed against them." The letter advised the clients that federal law may prevent creditors from taking immediate action and that the recipients of the letters could call Shapero's office for free information on how to keep their homes. The commission would not approve the letter because Professional Conduct Rules prohibited direct mail solicitation by lawyers if the mail was directed to specific recipients rather than to a general group of persons known to need the particular kind of legal services offered. The Kentucky Supreme Court affirmed the commission's finding. Shapero appealed to the U.S. Supreme Court, claiming that the rule violated attorneys' rights to free speech. Did Shapero succeed in his claim?