How did the success of "The Campaign" affect Joseph Addison's career?

The success of The Campaign, published in 1704 to celebrate the Duke of Marlborough’s victory at the Battle of Blenheim, served as a significant catalyst for Joseph Addison’s career in government service.1

Following the poem's immediate acclaim, Addison’s political standing rose in tandem with the success of the Whig party. In May 1705, he was appointed undersecretary to the secretary of state, a position that provided him with increased financial security and a more prominent role in the administration. This trajectory continued as he was retained in a more powerful Whig government in 1706, eventually leading to his election to Parliament in 1708 and his appointment as secretary to the lord lieutenant of Ireland, a high-revenue role equivalent to secretary of state for Irish affairs.1