The country singer released a new opinion piece in the Washington Times on Thursday (July 5), criticising Chief Justice Roberts' recent vote in favour of more affordable health care in America.
In the piece, titled 'Turncoat Roberts', Nugent writes: "Because our legislative, judicial and executive branches of government hold the 10th Amendment in contempt, I'm beginning to wonder if it would have been best had the South won the Civil War. Our Founding Fathers' concept of limited government is dead."
Nugent also criticises US president Barack Obama in the article, adding: "The president should have Chief Justice Roberts over for dinner, give him a ride on Air Force One and apologise for not voting for him during his confirmation hearings.
"It's the least the community-organizer-in-chief can do for the turncoat chief justice who saved the president's socialist health care programme."
Nugent has come under fire for his political comments in the past, after calling the Obama administration "evil" and "America-hating".