He was married to journalist and editor Bettina Heltberg from 1966 to 1993. At his death he was married to film director Anne Wivel. He had four children. Margrete Auken is his sister.
In 1987 Svend Auken succeeded Jørgensen as leader of the Danish Social Democrats, at that time an opposition party to the government of Prime MinisterPoul Schlüter. After making big gains in the 1990 general election, he was subsequently unable to put together a workable coalition, partly because of bad personal relations with prominent politicians in the traditional coalition party of the Social Democrats, Det Radikale Venstre (The Social Liberal Party of Denmark).
His position as leader of the Social Democrats was challenged in 1992 by Poul Nyrup Rasmussen, who went on to win the internal election. That gave Auken the dubious distinction of being the first Social Democratic leader since 1910 to not become prime minister. (Subsequently, this has happened to Mogens Lykketoft, leader from 2002 to 2005, as well.)
After the defeat of Rasmussen's government in the general election of 2001, Svend Auken continued to serve as a member of the Danish parliament. He was the EU-affairs spokesman of his party until his death, and he maintained a high profile on environmental issues.
Svend Auken was generally acknowledged to be one of the most naturally gifted and charismatic Danish politicians of his generation, and he is sometimes referred to as "the best Prime Minister Denmark never had".[1]
He is one of the few Danish politicians to be honoured in the United States House of Representatives.[2]