The first transgender person to serve as a women's officer in the Labour party has told talkRADIO that any man can identify as a woman - but a white person can't say they're black.
Lily Madigan also told Julia Hartley-Brewer that a man should be able to stand in all-women's electoral shortlists even if they've only been identifying as such for a few days, and she'd happy for such shortlists to be comprised exclusively of trans people.
Madigan made history last year when she was elected women's officer in Rochester and Strood, just five years after releasing she was trans.
The election has sparked a row within the party, further inflamed by Labour's decision to allow trans people to stand on all-women's shortlists.
Madigan told Julia she "absolutely" supports this decision, adding that there is no time limit or surgical prerequisite for a woman to stand in all-female shortlists - a comment which prompted Julia to suggest Madigan was saying "if you put a skirt on, you can stand."
"I can tell you I'm a table but that doesn't make me a table, I'm still a woman," Julia continued. "Words have meanings."
She then put it to Madigan that "if I tell you I'm a black man, you'd accept that and believe that and I should then be treated as someone who's suffered from terrible racism throughout my life."
But the interviewee said that's a completely different issue, as race is based on "more complicated biology".
Madigan was then asked about the issue of all-women's shortlists being exclusively trans - and said she was completely happy with that.