Anti-trans Rep. Nancy Mace (R-SC), who regularly uses anti-trans slurs and calls herself a “proud transphobe,” is getting called “totally befuddled” and accused of “having a sharp mental decline” by many on her side of the aisle. Mace was a fairly middle-of-the-road Republican until last year, when she started acting out more and more in public. First, she began her scorched-earth campaign against trans Rep. Sarah McBride (D-DE), which included …