Abel Parker Upshur (1790–1844) was an American lawyer, judge, and politician from Virginia.
He was active in Virginia state politics and later served as secretary of the Navy and secretary of state during the Whig administration of President John Tyler.
He was the pseudonymous author of An Exposition of the Virginia Resolutions of 1798, a vigorous defense of state nullification.
Ludwig von Mises: "Nothing is more calculated to make a demagogue popular than a constantly reiterated demand for heavy taxes on the rich. Capital levies and high income taxes on the larger incomes are extraordinarily popular with the masses, who do not have to pay them." - Socialism