Her ex-comms director torches her
Natalie Johnson, Mace's former communications director, publicly derided the November 2024 bathroom-bill push as 'a ploy to get on Fox News,' writing that Mace tweeted about the bill 262 times in 36 hours despite it applying to a vanishingly small fraction of Congress. The posts were widely covered by Mediaite, Salon, and Newsweek.

In November 2024, as Rep. Nancy Mace was leading a push for a resolution barring transgender members of Congress from using bathrooms that align with their gender identity, her former communications director publicly broke with her, in pointed terms.
Natalie Johnson, who had served as Mace's communications director before departing the office, wrote on X that the campaign was "a ploy to get on Fox News" and that anyone who believed it was about protecting women had "been fooled," per Mediaite, Salon, and Newsweek. Johnson also wrote, again, in her own words, that "tweeting 262 times about a bill that applies to like .00000001% of Congress in 36 hours" was about media attention, not policy.
A second widely-shared post from Johnson took aim at Mace's appearance; this page does not reproduce that language. The Mediaite article linked below covers the full exchange.
Johnson's Fox News characterization (November 20, 2024):
If you think this bill is about protecting women and not simply a ploy to get on Fox News, you've been fooled.
Natalie Johnson (@nataliejohnsonn) November 20, 2024
Johnson's post, her words, as posted to X. Johnson is identified by each outlet as Mace's former communications director.