He helped draft the Constitution of 1845 .
He was the only elected official to vote against annexation , allegedly because he did not wish to enlarge the domain of his brother - in - law , George M. Dallas , then vice-president of the United States .
official helped draft the Constitution of 1845 .
He was the only elected official to vote against annexation , allegedly because he did not wish to enlarge the domain of his brother - in - law , George M. Dallas , then vice-president of the United States .