George M. Dallas
Voters elected Dallas mayor of Philadelphia as the candidate of the Family party, after the party gained control of the city councils. However, he quickly got bored of being the mayor. He became the United States attorney for the eastern district of Pennsylvania in 1829, and continued in that role until 1831. In December of that year, he won a contest in the state legislature, that enabled him to become the Senator from Pennsylvania in order to complete the unexpired term of the previous senator who had resigned.