Defunct Former Gustav Mattias Anton Kasselstrand (born 27 June 1987) is a Swedish politician who co-founded the Alternative for Sweden (AfS) in 2018.

Between 2006 and 2010, he studied German and economics at the University of Gothenburg, completing terms abroad in Germany and Singapore.

Kasselstrand had previously worked at the Sweden Democrats' office in the Riksdag with the party's economic policy that included a focus on the labor, financial and tax market.

[6] She referred to the article in which Kasselstrand and the youth league's deputy chairman William Hahne had criticized the Sweden Democrats' policy regarding the Israeli–Palestinian conflict.

[7][8] In November 2012, Kasselstrand and Hahne attracted attention after going against the mother party again, this time by criticizing the situation surrounding Erik Almqvist in the acclaimed "Iron Pipe Scandal", which led to him losing his job as political secretary at the Sweden Democrats' parliamentary office on 21 November.

[11][12][13][14][15] Ahead of SDU's congress in Linköping between 6 and 8 September 2013, another unanimous nomination committee proposed the re-election of Gustav Kasselstrand as chairman of the youth league.

[16] Kasselstrand led the youth league through the election year 2014 and at the congress between 28 and 30 November 2014, he was challenged for the chairmanship by Henrik Vinge.

Kasselstrand called the action "undemocratic" and meant that it was all a way for the party leadership to secure their own power and positions, and that they feared the upcoming generation in the youth league to gain more influence.

After Kasselstrand's resignation during the congress in September 2015, Jessica Ohlson won the election as the new chairman against Tobias Andersson, who had major support from the party officials in his candidacy.

It also relied on Trump-like slogans like “draining the political swamp”, and decrying the Sweden Democrats as an authoritarian, oligarchic party too interested in power to mind its core principles or allow any internal frictions or controversy.

Soon after the party's launch on 5 March 2018, officials announced that Alternative for Sweden was to run for the 2018 general election.