A Ukip Essex County Councillor and Parliamentary candidate for Braintree died suddenly on Christmas Eve after suffering a suspected stroke.
Gordon Helm had been attending a party branch meeting in the town on December 15 when he became ill.
The 75-year-old was taken home, but then rushed to Broomfield Hospital, in Chelmsford, where he died a week later, just after 6am on Christmas Eve.
Jamie Huntman, Ukip group leader at Essex County Council said: "Gordon worked tirelessly for his residents and UKIP. Earlier his year he received an award at the UKIP conference in recognition of this.
"He set up the Branch in Braintree and in his spare time when he had any wrote poetry. At the last Full Council he submitted a motion to help small business in Essex particularly the local High street.
"I'm sure I can speak on behalf of all his fellow UKIP County Councillors when I say he will be fondly remembered and greatly missed."
Cllr Helm joined Ukip in 2007 after reading about their policies online, was elected as an Essex county councillor for Bocking in May 2013, and was nominated to stand as their candidate in the May general election as well as being the chairman of the Ukip Braintree association.
District councillor David Man, chairman of Braintree and Bocking Labour Party, said: "I knew Gordon long before he became involved in local politics.
"That he offered himself for service in this way at a time of life when many would look for something quieter and simpler says a great deal about his energy, drive and commitment.
"He was a most charming person, and will be much missed by his friends, community and party."
Many in Ukip believed he had a good chance of becoming the district's MP after incumbent Brooks Newmark announced he would stand down following revelations he sent explicit text to a freelance journalist posing as a Tory PR girl as well as conducting a two-year affair with a married woman.
"The tragedy is that Gordon could have been on the verge of becoming Braintree's MP, the feedback we were getting was very positive. We are a very successful association and it is largely down to Gordon," said Phil Palij, secretary of Ukip's Braintree association.
"He was passionate about saving this country and we will continue as he would have wanted, in his name.
"Gordon was straight-talking, was very good-natured and was able to set people at ease. He was my friend and will be sorely missed."
Before becoming a councillor Mr Helm, who lives in Bocking, was a retail manager at B&Q, Marks & Spencer and Tesco.
Ukip party leader, Nigel Farage, tweeted: "Gordon Helm was a committed activist who cared deeply about his community. He will be missed."
Braintree District Council leader, Graham Butland tweeted: "I send my condolences to the family of County Councillor Gordon Helm who represented Bocking Division and who passed away on Christmas Eve.
Mr Helm is survived by his wife Christine, a son, daughter and granddaughter, who just arrived from China to celebrate Christmas.
His funeral will take place at 1pm on January 16 at The Three Counties Crematorium, High Garret, Halstead Road Braintree.