It's obscure. It's pretty obviously awful and ridiculous. Alas, it has historically had many defenders in politics, because the financial industry donates to both sides.
Wouldn't it be awesome if, with everyone (Trump, Jeb Bush -- albeit as part of a package that stinks, and obvs Clinton and Sanders) kinda conspicuously opposed to Carried Interest being treated as capital gains, we could finally change that?
Yeah, it would. But I am not going to hold my breath, because you could def die waiting for this one to go away.
More coverage at NYT: http://www.nytimes.com/2015/09/18/business/with-trump-as-foe-carried-interest-tax-loophole-is-vulnerable.html