There appears to be a "person of interest" in the abortion draft leak.

He clerks for Sotomayor.

The Ancestory (Archived): Who is Amit Jain?

Amit Jain, a Supreme Court clerk, is accused of putting his job in jeopardy in order to uncover the truth about the abortion draft.
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Amit, the CEO of Sequoia Capital India, is stepping down to follow his passion for entrepreneurship. In a 2017 post for Politico, Josh Gerstein cited him. Today, Gerstein released the proposed SCOTUS Roe opinion.
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Supreme Court Justice Sonia Sotomayor’s clerk is Amit Jain, the individual who recently released the abortion draft.

FOX News (Archived): Liberal Alan Dershowitz appalled by the leak.

[Said Dershowitz]: "And I have a theory and it's only a theory: I think this was leaked by a liberal law clerk who is trying to change the outcome of the case – either by putting pressure on some justices to change their mind or by getting Congress to pack the court even before June, which is very unlikely."

Even The Jeff Bezos Peoples' Republic has an Op/Ed from a Bloomberg writer that the leaker should come forward (Archived): The Supreme Court Leaker Should Come Forward.

I do not, as a rule, like leakers. Leakers are liars.

Among such lying leakers I include whoever provided Politico with what is apparently a draft of a majority opinion by Justice Samuel Alito overturning the court’s almost half-century old precedent in Roe v. Wade. Whatever our views of Roe, or of the sphere of choice generally, none of us should be celebrating the leak.

The filthy, repugnant reprobate Liberal POS NY Senator Cluck Schumer, on the other hand, is inconsolable over the possibility of abortion being returned to a decision made by States, not the Federal government. 

C-SPAN: Majority Leader Schumer Expresses Democrats' Outrage Over Leaked Draft Abortion Opinion.