Former President George W. Bush on Thursday praised his understudy of eight years as a “solid, reliable, and rare” figure who exuded integrity and loyalty, as he mourned the passing of former Vice President Dick Cheney at a packed memorial service at Washington, D.C.'s National Cathedral for the conservative icon.

Liz Cheney recalled her father Dick Cheney 's final words in her touching eulogy at his funeral on Thursday. “As my dad left this earth, his last words were to tell my mother he loved her,” she told gathered friends, family and former president and vice presidents at Washington National Cathedral.

All five living former vice presidents attended the funeral of Dick Cheney, a powerful and polarizing figure in U.S. politics.

Vice President JD Vance was also not invited, a source familiar with the matter confirmed to ABC News.Former President George W. Bush, who Cheney served for two terms, will offer a tribute at the service.