We begin here in Germany... where Chancellor Angela Merkel has chosen Christian Wulff, the state prime minister of Lower Saxony, as her preferred candidate to become German president. Wulff is a member of the conservative Christian Democratic Union. He is considered a progressive force in the government, but experts doubt he can provide a fresh start for the embattled center-right coalition. Germany has until June 30 to find a new head of state, following the surprise resignation of President Horst Köhler on Monday.