John Dennis `` Denny '' Hastert ( ; born January 2 , 1942 ) is an American politician , lobbyist , and member of the Republican Party who was the 59th Speaker of the United States House of Representatives , serving from 1999 to 2007 .
John Dennis `` Denny '' Hastert ( ; born January 2 , 1942 ) is an American politician , lobbyist and member of the Republican Party . He was the 59th Speaker of the United States House of Representatives , serving from 1999 to 2007 .