Complex sentence: After Lehman was elected she stayed involved with community and political organizations in Harlem, and in 1954 she was approached about running as the Democratic Party candidate for the New York State Assembly from Harlem's Twelfth District.
Split into simpler sentences: After Lehman was elected, she stayed involved with community and political organizations in Harlem. In 1954 she was approached about running as the Democratic Party candidate for the New York State Assembly from Harlem's Twelfth District.