Poland Prime Minister Donald Tusk said on Wednesday that he would appoint Finance Minister Jacek Rostowski as deputy prime minister. Jacek Rostowski would keep his job as finance minister after the promotion, underscoring Poland\'s emphasis to finances, according to local media reports. The Prime Minister\'s appointment still have to be approved by President Bronislaw Komorowski. Jacek Rostowski was born on April 30, 1951 in London. He is an economist and a member of the Civic Platform party. He joined the Cabinet of Premier Donald Tusk and served as the Finance Minister since 2007. He has been a member of Sejm (lower house) since 2011.