Complex sentence: He served as Vice President under Nicolás Ardito Barletta following the disputed 1984 election, and after Barletta's forced resignation, Delvalle served as President of Panama from September 28,1985 to February 26,1988.
Split into simpler sentences: He served as Vice President under Nicolás Ardito Barletta. Following the disputed 1984 election, and after Barletta's forced resignation, Delvalle served as President of Panama from September 28,1985 to February 26,1988.