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Photo: Michael Brochstein/Echoes Wire/Barcroft Media via Getty Images

Former Vice President Joe Biden won Wyoming's caucus on Sunday, according to the state's Democratic Party.

The big picture: Wyoming's in-person caucuses were suspended due to the coronavirus, and the vote-by-mail deadline was last Friday. Biden, who is the party's presumptive nominee now that Sen. Bernie Sanders has dropped out, earned an overwhelming 72.2% of the popular vote and claimed 10 delegates.

Go deeper: Sanders tells supporters that refusing to back Biden is "irresponsible"

Go deeper

Updated Aug 18, 2020 - Politics & Policy

Axios-NewsWhip 2020 attention tracker library

Focus group: Michigan swing voters question Biden's ability to lead

Photo illustration: Aïda Amer/Axios. Photo by Drew Angerer/Getty Images.

Some swing voters in Warren, Mich., question Joe Biden's ability to lead the country — calling him a "puppet" who's not "mentally capable of being president" — while admitting they haven't paid much attention to his events, platforms or speeches.

Why it matters: President Trump's branding of Biden is defining him with these voters, particularly Trump's insinuations about senility (though the cognitive swipes have gone both ways between these rivals).

2020 attention tracker: Biden succeeding in making it about Trump

Data: Newswhip; Graphic: Axios Visuals

Even after emerging from his Delaware basement, Joe Biden has consumed less and less of the national conversation while his polling lead over President Trump has swelled, according to data from NewsWhip provided exclusively to Axios.

Why it matters: Trump's punches aren't landing. Biden is avoiding heightened scrutiny while Trump absorbs the blowback for his responses to national crises.