challenge in 2014, turned down his 2015 nomination from Boston mayor Marty Walsh, labelling Walsh "a clown" and suggesting that Boston "get a new mayor." In the UK, the MND Association declined to revive the challenge. "We felt we raised a significant amount of money and awareness last summer. While people might be keen to do it again, we wouldn't say please do it again," said Chris James, the Association's director of external affairs. Instead, the Association ran a "Last Summer" campaign commemorating the efforts of the public with the challenge, including the testimonies of those with ALS. Despite the reluctance of the MND Association, the cast of soap opera Hollyoaks nonetheless performed the challenge, nominating the cast of another soap, Casualty. Eddie Redmayne, having been nominated by Zellweger, also accepted the challenge for a second year, filming his video in London and nominating Charlie Cox, who did his 2015 challenge in New York. An attempt at the world record for the largest number of people simultaneously performing the challenge took place September 6, 2015 in Tewkesbury as part of a fundraiser for child bereavement charity Winton's Wish. In the event, the world record of 428 remained untouched but a new UK record of 248 people was set. TV presenter Eamonn Holmes performed the challenge in early October on This Morning after announcing he would do so while hosting the Pride of Britain Awards a few days earlier. By early October, it was reported that the 2015 challenge had raised $500,000 as compared with the $115 million raised by the 2014 challenge. The final figure was reported by the ALS Association in mid-October as being $1,000,000, with a survey by health analysts Treato showing that only 14% of donors from 2014 donated again in 2015. 2016-2019 Australian Deputy Prime Minister Barnaby Joyce performed the challenge in 2016, nominating his colleague Michael McCormack, the Minister for Small Business. Fellow Australian MP Adam Marshall also performed the challenge. A new variant on the challenge this year, the "What's In Your Bucket?" challenge, featured the replacement of the ice cubes with other substances, including tomato ketchup, spaghetti, pickles, beer, baby powder, coffee, and sand. A further attempt on the world record for the largest mass Ice Bucket Challenge in Buffalo, New York drew 650 participants, 71 short of the existing record of 721. Charlie Baker, governor of Massachusetts, formalized the annual challenge by