In the email, shared with Axios, Mondale thanked them for their work and declared that "never has a public servant had a better group of people working at their side!" Mondale spent 12 years representing Minnesota in the U.S. Senate before becoming vice president under Jimmy Carter.
The death of Mondale, known as a champion of liberal politics, was announced by a family friend and spokeswoman Kathy Tunheim but no specific cause was provided, according to The Washington Post.
"I always knew it would be okay if I arrived some place and was greeted by one of you!" It wasn't just Harris that Mondale chatted with over the weekend, Cosgrove said - he also spoke with Carter, President Biden, former President Bill Clinton, and Minnesota Gov. Tim Walz (D).
Medical Examiner: US Capitol Police Officer Died of Natural Causes After Attack
The Capitol Police had previously said in a statement that Sicknick "was injured while physically engaging with protesters". Sicknick was standing guard with other officers behind metal bicycle racks as the mob descended on the Capitol.
Biden honored the contributions of former Vice President Walter Mondale to his own career. "He actually gave me a memo, classic Fritz, gave me a memo, as to what I should be looking for and what kind of commitments I should get to be able to do the job the way Fritz thought it should be done". William Mondale served for a time as an assistant attorney general.
The selection of Geraldine Ferraro as Mondale's running mate made him the first major-party nominee to put a woman on the ticket.
Mr Carter said he considered Mr Mondale the "best vice-president in our country's history". He served as vice president under Carter between 1977 and 1981, until Ronald Reagan and his running mate, George H.W. Bush, defeated Carter and him in 1980.