Candidates for CDU leadership arrive at Hamburg conference The main candidates for the CDU leadership[, Annegret Kramp-Karrenbauer, Jens Spahn and Friedrich Merz arrives at the Hamburg Congress. German Chancellor Angela Merkel will hand over the reins of her Christian Democratic Union Friday after nearly two decades, with the fate of the divided party up for grabs between a loyal deputy and a longtime rival. IMAGES AND SOUNDBITES