Larry Sanders, the brother of Sen. Bernie SandersBernie SandersEx-Obama official on Sanders-Warren feud: 'I don't think it played out well for either of them' Former Vermont Governor: Sanders 'will play dirty' Hill.TV's Krystal Ball rips Warren over feud with Sanders MORE (I-Vt.), failed to win a seat in British parliamentary elections on Thursday.

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Sanders came in fourth place, according to a Reuters report.

Sanders ran under the Green Party banner for the seat held by former Prime Minister David Cameron, who stepped down in July after Britain voted in a referendum to leave the European Union. 

Earlier this month, the Vermont senator and one-time Democratic presidential candidate endorsed his brother's candidacy for a seat in the House of Commons and posted a video message urging his election. 

But it wasn't enough to push his brother's candidacy forward — Larry Sanders came in fourth, with about 3 percent of the vote.