[rikkir]

Just to clarify Rush does not support PETA ,and it is Hynde’s money to do what she wants.
That’s too much like guilt by association, essentially what most of the bikers in Waco were jailed for, and a Constitutional violation.
I see no evidence of there ever being a PETA lawsuit against the EPA.

[Drew68]

I see no evidence of there ever being a PETA lawsuit against the EPA.

I was mistaken. It doesn't appear there was a formal lawsuit, just a publicity campaign. In Hynde's own words,

"In light of Rush Limbaugh's vocal support of PETA's campaign against the Environmental Protection Agency's foolish plan to test some 3,000 chemicals on animals, I have decided to allow him to keep my song, 'My City Was Gone,' as his signature tune and to donate all proceeds from the deal to further PETA's efforts in that regard" ...

Really Randoms: Chrissie Hynde, Ricky Martin, Jimmy Page Rolling Stone (Aug 28, 1999)

For whatever it's worth.