Elon Musk, the Tesla billionaire who has been named by U.S. president-elect Donald Trump to lead the new "Department of Government Efficiency".

Dogecoin (DOGE) is down 4% on Thursday after key figures, including Elon Musk, shared views on its token design and what a deflationary path could mean for its appeal as a currency. Meanwhile, traders Ali Martinez and Peter Brandt highlighted key similarities between Dogecoin's current price movement and historical data.

Dogecoin was once a joke, but the meme coin gained traction after Elon Musk backed it. Now he's set to co-lead a D.O.G.E. government agency. Here's a look back.