Barton was drafted by the Seattle Seahawks in the third round (88th overall) of the 2019 NFL draft.[3] He made his professional debut in Week 3 of the 2019 season and recorded his first takeaway in the same game after recovering a muffed punt from New Orleans Saints returner Deonte Harris.[4] He spent the majority of his rookie season on Seattle's special teams units and led the team in special teams snaps.[5] He became a starting linebacker in the 2020 season.[6]
Washington Commanders
Barton signed a one-year contract with the Washington Commanders on March 16, 2023.[7] He suffered a high ankle sprain in Week 7 and was placed on injured reserve on October 28, 2023.[8] On November 22, the Commanders reactivated Barton.[9]
Denver Broncos
On March 18, 2024, Barton signed a one-year, $3.5 million contract with the Denver Broncos.[10] In a Week 7 victory over the New Orleans Saints on October 17, 2024, Barton scored his first career touchdown on a 52-yard fumble return. Barton also recorded eight tackles, a pass deflection, and a strip sack.[11] This led to him being named AFC Defensive Player of the Week.[12]