According to Sky News:

Kamala Harris has embraced the social media trend of a "brat summer" in her presidential campaign.

The term brat has been described by the singer [Charli XCX] as being representative of someone who might have "a pack of cigs, a Bic lighter and a strappy white top with no bra".

i.e. someone on track for a double masectomy after inevitably contracting breast cancer in late middle age.

...She's explained on social media how it is similar to the "girl who is a little messy and likes to party and maybe says some dumb things sometimes," she said.

...In other words, it's an aesthetic characterised by a carefree mindset and party girl aesthetic.

Just the right stuff for the President of the USA then!

Move over demented geriatrics and loud-mouthed dealmakers, the brat is back in town.

What's next? Congress getting down with the homies, the Senate smacking a few bitches up.

For God's sake. How much more of this bullshit can an electorate put up with?

Bring on November and get it over with.