J. Campbell Barker | |
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| Judge of the United States District Court for the Eastern District of Texas | |
| Assumed office May 3, 2019 | |
| Appointed by | Donald Trump |
| Preceded by | Leonard Davis |
| Personal details | |
| Born | 1980 (age 44–45) New Orleans, Louisiana, U.S. |
| Education | Texas A&M University (BS) University of Texas (JD) Duke Law School (LLM) |
John Campbell "Cam" Barker (born 1980) is an American federal judge of the United States District Court for the Eastern District of Texas.