When Harrison died of pneumonia, Tyler became the President. At the time it was disputed what the substitution of the President was meant to be and ex-President [[John Quincy Adams]] sent him letters signed to "The acting President." Tyler did not win the Whig nomination of 1844 but lost it to Henry Clay. | When Harrison died of pneumonia, Tyler became the President. At the time it was disputed what the substitution of the President was meant to be and ex-President [[John Quincy Adams]] sent him letters signed to "The acting President." Tyler did not win the Whig nomination of 1844 but lost it to Henry Clay. |