James Knox Polk was the 11th president of the United States, serving from 1845 to 1849. He also served as the 13th speaker of the House of Representatives from 1835 to 1839 and the ninth governor of Tennessee from 1839 to 1841. A protégé of Andrew Jackson, he was a member of the Democratic Party and an advocate of Jacksonian democracy. Polk is known for extending the territory of the United States through the Mexican–American War during his presidency, annexing the Republic of Texas, the Oregon Territory, and the Mexican Cession after winning the Mexican–American War.

The speaker of the United States House of Representatives, commonly known as the speaker of the House, is the presiding officer of the United States House of Representatives. The office was established in 1789 by Article I, Section II, of the U.S. Constitution. By custom and House rules, the speaker is the political and parliamentary leader of the House and is simultaneously its presiding officer, de facto leader of the body's majority party, and the institution's administrative head. Speakers also perform various other administrative and procedural functions. Given these several roles and responsibilities, the speaker usually does not personally preside over debates—that duty is instead delegated to members of the House from the majority party—nor regularly participate in floor debates.