It was a busy first year for New Jersey Attorney General Gurbir Grewal.

Since taking office in January, he has spearheaded lawsuits against the Trump administration over taxes, targeted polluters for cleanup costs and changed the rules for how police in the Garden State treat immigrant communities. He also plans to ask about immigration status in the 2020 Census.

Oh, and he's the first Sikh-American attorney general in the United States.

To mark the end of his first year as the state's top prosecutor, Grewal sat down with WNYC host Richard Hake to discuss some of the wins and controversies of his term so far, like his conflict with federal immigration authorities over policing immigrants and his efforts to stamp out the endemic public corruption throughout the state.

"We have the honor—not really an honor, a dishonor—in this state of having, over the course of the last five decades, a mayor in every one of our major cities arrested or indicted or charged with some sort of public corruption offense. And things have to change," Grewal said.

For the full conversation, click "Listen."