Video: 'George Mifflin Dallas (Part 1)- DALLAS'

(Tuesday, July 10, 1792) — George M. Dallas, the 11th vice president of the United States from 1845 to 1849, serving under President James K. Polk, was born George Mifflin Dallas today in Philadelphia.

Video: 'George Mifflin Dallas (Part 2)- On The Streets Of Philadelphia'

A supporter of expansion and popular sovereignty, Dallas called for the annexation of all of Mexico during the Mexican–American War.

He sought to position himself for contention in the 1848 presidential election when Polk declined to seek a second term, but his vote to lower the tariff destroyed his base of support in his home state.