Former President Donald Trump has continued to attack Vice President Kamala Harris‘s biracial identity despite GOP consternation that it could turn off critical swing voters.

“Thank you Kamala for the nice picture you sent from many years ago!” Trump sarcastically wrote Thursday morning on Truth Social, sharing a photo of Harris embracing her Indian heritage with family members as he casts doubt on her identity as a black woman. “Your warmth, friendship, and love of your Indian Heritage are very much appreciated.”