"I don't think she's being treated fairly, I don't. I think she is sweet, she is loving, she is kind. She's extremely generous with her time and her spirit, and I wish we heard more about that," said King, who attended Markle's New York City baby shower.
The CBS This Morning anchor did say, however, that she thinks people are starting to get the real story about Markle, who has been portrayed as demanding in some British tabloids.
"She's doing OK. She's doing alright. We don't have to worry about Meghan Markle and [Prince] Harry," King insisted. "They're really going to be just fine."
The 64-year-old journalist admitted that interviewing the royal couple is on "everybody's list, including mine" and is looking forward to covering their soon-to-be royal baby.
"We're getting ready to go over to England to shoot some stuff over there, so I'm really really excited about it," she shared. "And this is the thing, who doesn't love a good love story? Who doesn't love a couple that's in love having their first baby? I'm cheering them both on always, I'm very psyched."
King is also a supporter of the pair's decision not to announce their baby's birth according to royal tradition, or pose outside of the hospital with their little one.
"I think the beauty of what Harry and Meghan can do, because it's highly unlikely he will be king, they can really live a different kind of life. They're still part of the royal family, they love being part of the royal family and all that comes with that, but I think it also gives them breathing room for things that aren't traditional," she expressed. "Listen, nothing about their relationship is traditional, and I think that's a great thing."
"[I feel the most powerful] when I'm having substantive conversations about things that matter," she told ET. "I think that speaking truth to power is revolutionary, whether it's to five people or 500,000 people or 5 million people. And that's one of the things we're honoring here tonight, such incredible driving forces in media and journalism in particular, which I think we need now more than ever."