Fitzsimons was asked to represent Pennsylvania at the Federal [[Constitutional Convention]] in 1787. There, he argued strongly that the Federal government should have the ability to tax imports and exports. Following the Convention, he signed the Constitution<ref name="FITZSIMONS, Thomas, 1741–1811"/> and was instrumental in advocating its ratification.<ref name=army /> | Fitzsimons was asked to represent Pennsylvania at the Federal [[Constitutional Convention]] in 1787. There, he argued strongly that the Federal government should have the ability to tax imports and exports. Following the Convention, he signed the Constitution<ref name="FITZSIMONS, Thomas, 1741–1811"/> and was instrumental in advocating its ratification.<ref name=army /> |