Retired Lt. Gen. Dan “Razin” Caine, President Donald Trump‘s pick to become the highest-ranking military officer, pledged to lawmakers that, if confirmed, he would remain apolitical and provide his best advice to senior leaders.

Dan Caine, a retired Air Force lieutenant general, committed Tuesday to serving as a nonpartisan leader who would give unvarnished military advice and always “strive to do the right thing” if confirmed as the next chairman of the Joint Chiefs of Staff.

President Donald Trump has told a story about retired Air Force Lt. Gen. Dan Caine saying he wore one of the hats when the two met some years ago.