Donald Trump Jr. said he wouldn’t rule out running for office himself one day and expressed happiness and relief about how Special Counsel Robert Mueller’s investigation ended.

The president’s oldest son said he remained focused on getting “the country back on track” and promoting the policies of his father, Donald Trump, around the country. “If I can be helpful and I can be powerful voice for that that’s my primary focus,” he said in an interview with Kevin Cirilli on Bloomberg Radio’s “Sound On” on Wednesday evening.

“As for the future,” he added, “I never want to rule it out. I definitely enjoy the fight. I definitely like being out there and I love being able to see the impact and the difference that it makes on these people’s lives that I get to see all over the country.”

“We have a lot of time,” he said, not speculating on what office he might consider seeking. “My father decided to get into politics at 68. I’m 41, I’ve got plenty of time.”

Trump Jr. said that after learning that there would be no more indictments in the special counsel’s investigation and that Mueller had concluded there was no collusion between the Trump campaign and the Russians, “Obviously, we were happy and there’s some relief there.”Read More: Trump Jr. Escapes Mueller Probe Despite the Trump Tower Meeting

“So I knew we didn’t do anything wrong,” he said. “But just because something is nonsense doesn’t mean you don’t still have to deal with nonsense and you don’t have to deal with half of the country and leading congressional candidates and people for president saying you’re being treasonous and all of this nonsense.”

Mueller’s inquiry cast a cloud over his father’s administration from its earliest days.

Some observers openly speculated that Trump Jr., an executive vice president at the Trump Organization and a rising star in the Republican Party, faced legal jeopardy tied to a 2016 meeting he attended in Trump Tower where emails suggested he expected to be offered dirt on his father’s opponent, Hillary Clinton.

Trump Jr. said Wednesday he spent some 27 hours testifying before Congress, and that Mueller’s team would’ve jumped at the opportunity to indict him and his father if given the chance. “They would’ve reveled in it,” he said.