Former Grayson County District Attorney Joe Brown was formally sworn in Friday as the U.S. Attorney for the Eastern District of Texas at the Paul Brown United States Courthouse in Sherman. The swearing-in featured the judges of the Eastern District of Texas, prosecutors from Grayson County and Fannin County and many who have been important in Joe Brown’s life and career.

Here are three things to know about Brown and his new job.

1. 43 counties

As U.S. Attorney for the Eastern District of Texas, Brown is now responsible for a population of 3.5 million people. The Eastern District of Texas is made up of 43 counties that stretch from the Oklahoma border to the Gulf of Mexico. Brown now has 93 employees, including 46 prosecutors, according to the statement from the Eastern District of Texas.

2. Staying in Grayson County

The district has six offices, including one in Sherman where Brown will office. He will then travel to the offices in Beaumont, Plano, Tyler, Texarkana and Lufkin. “This is a county that you can be proud that you have helped to create,” Brown said earlier this year. “I am proud. It is my home. It is where I will come back to. I am not going anywhere. I am glad that we have been able to make a difference.”

3. Nominated by Trump

Brown was nominated for the position by President Donald Trump. Previously, the position was held by Malcolm Bales, who was nominated as U.S. Attorney by President Barack Obama in 2009. In September 2016, Bales retired following 34 years of work with the government, the Beaumont Enterprise reported. Since that time, Brit Featherston served as the acting-U.S. Attorney for the eastern district.