"It's the worst interview I ever did," McCain tells ET of the May 2019 interview, in which Meyers accused her of making "fairly dangerous" comments about Rep. Ilhan Omar. "I felt like people only talk about the really good parts of motherhood and they're amazing but it's hard, it's physical ... and having a miscarriage is one of the worst things I've ever experienced and I went into detail because at the time there was a big media scandal on an appearance I had on Seth Meyers going on at the same time," she explains. "Trying to handle, like, this chaos and huge scandal in my professional life along with this chaos and, you know, intense pain and, you know, just physical pain in my personal life, it was like the closest I've ever come to being, like, I don't know what I want to do anymore because this is all so overwhelming. I really blamed myself, and thought that maybe because I had this chaotic experience on a late-night show or because I had a tough ... I used to argue on television for a living and I thought if maybe I had more of a serene environment or I was a calmer person or I was younger that this wouldn't have happened," she shares. "I know from medical advice from my doctors that it's not true. But women blame themselves for things like that that happen. I just don't want people to feel so alone. I felt really alone throughout the whole thing." ALSO: McCain says she supports her "good friend" Real Housewives of Beverly Hills star Erika Jayne amid her legal woes.