Sunday Puzzler

Challenge from Nov. 12: From Doug Heller of Flourtown, Pennsylvania: Name a famous person in American politics, five letters in the first name, six letters in the last. You can rearrange this to spell the names of two countries, one of them five letters and the other six. The five-letter one is the current name of a country, the six letter one is an old name for a country, but both are well known. Who is the politician and what are the countries?