Rep. Tom Marino is preparing to leave his House seat to become director of the Office of National Drug Control Policy, a position effectively known as the country’s drug czar.

CBS News reports that Marino is in the final stages of joining President Donald Trump’s administration and that an official announcement was pending.

In 2016, Marino was appointed by Speaker Paul Ryan to serve on a bipartisan Republican conference committee that worked on coming up with legislation to combat the nation’s opioid problem.

The Pennsylvania Republican, who represents his state’s 10th District, is a former federal prosecutor. He is serving his fourth term in Congress.

Marino serves on the Judiciary and Homeland Security committees, where he has been vocal on immigration issues including opposing a path to citizenship for illegal immigrants.

Marino was an early supporter of Trump’s candidacy, endorsing his run in March 2016.