Currently, the 15th Congressional District composes of a narrow strip of land running from western Hidalgo County in the Rio Grande Valley northwards to eastern Guadalupe County, to the east of San Antonio.

The district has generally given its congressmen very long tenures in Washington; only eight people, seven Democrats and one Republican, have ever represented it.

He ran with Franklin D. Roosevelt in the 1932 and 1936 presidential campaigns, and was elected Vice President of the United States, serving from 1933 to 1941.

Notably, this district narrowly voted more Republican in the House elections than the nation as a whole in 2020.

Due to redistricting, incumbent Gonzalez in the 2022 election ran in the 34th congressional district.