President Jimmy Carter called in to Morning Joe on Tuesday to pay tribute to host Mika's late father, his former national security adviser Zbigniew Brzezinski who died last week at the age of 89.
'It's been one of the most valuable things in my life, the relationship with Dr. Brzezinski.
'He was the most brilliant person that I have ever known...you can be truly proud of him,' said 92-year-old Carter as Mika and her co-host and fiancé Joe Scarborough listened.
Dr. Brzezinski died on Friday in a hospital in Virginia. He served as President Carter's national security adviser between 1977 and 1981 after serving as a counselor to his predecessor, Lyndon B. Johnson.