As president, John Tyler: a. vetoed a bill to create a new national bank, thus angering Whigs. b. engaged in a public feud with his vice president that led to the latter’s resignation. c. appointed Roger Taney to the office of chief justice of the U.S. Supreme Court. d. proved so popular that he easily won the 1844 presidential election. e. worked hard to enact the Whig economic program.