MILWAUKEE - President-elect Donald Trump on Wednesday announced his nomination of Fiserv CEO Frank Bisignano for Social Security Administration commissioner. "I am very pleased to nominate Frank Bisignano to serve as the Commissioner of the Social Security Administration," Trump said in a post on Truth Social. "Frank is a business leader, with a tremendous track record of transforming large corporations. He will be responsible to deliver on the Agency’s commitment to the American People for generations to come!"