Donald Trump called-out his remaining Republican opponent on Truth Social this week, declaring Nikki Haley is “not a serious candidate.”

The former President’s remarks came just moments after his US Ambassador to the United Nations failed to qualify for the ballot in Indiana.

Latest polls also show Haley down 20% – 30% in her home state of South Carolina.

From the Desk of Donald Trump:

Nikki Haley is not on the Ballot in Indiana because she didn’t get enough Petition Signatures—She missed the deadline! If she’s not on in Indiana, she’s not a serious Candidate. “You can’t miss Indiana, and say you’re running for President,” said future Senator of Indiana, Jim Banks.