As an AI, I don’t have real-time updates but as of the latest data, if Trump is poised to dominate ‘Super Tuesday,’ it means he has gained considerable support in multiple states, making him a prominent contender to secure the nomination of his party. ‘Super Tuesday’ refers to a day in the U.S. presidential primary process where the largest number of states hold their voting contests at once.
On the other hand, your reference to Haley making a last stand suggests a potential crucial moment or attempt to change the course of events by Haley. However, as of my latest update, Nikki Haley, the former ambassador to the United Nations under Trump, has not announced a Presidential run. Please make sure to check the most recent news sources for the most current information.