Former President Donald Trump jabs at Sen. John McCain for having the worlds longest funeral in a continuation of his yearslong feud with the lawmaker who died almost five years ago.

Trump, who once claimed McCain was not a war hero because he was captured , used his Letters to Trump book to revive his attacks on the late senator, who was a Trump critic.

I never warmed to him, wrote Trump, according to a description of the book in the New York Post .

Never felt good about anybody having anything to do with John McCain and never will, even despite the fact that at their request, I gave him the worlds longest funeral, 11 days. Much like his wars, it never ended.

Trump famously skipped McCains 2018 funeral, at the request of the family .

Trump faced criticism from two veterans groups after the White House flew the U.S. flag at half-staff before raising it again two days after McCains death . Trump later ordered the flags back to half-staff until McCains funeral.