GOP candidates, former South Carolina Governor Nikki Haley and Florida Governor Ron DeSantis both promised — if elected president — they will pardon former President Donald Trump, who has managed to maintain his spot as the leading Republican nominee despite four indictments. The pair will face-off in CNN’s GOP presidential primary debate on January 10. “Let’s look at a poll out of Iowa,” MSNBC’s Alicia Menendez said during Tuesday’s episode of Deadline: White House. “Donald Trump at 52%. Ron DeSantis at 18%. Nikki Haley at 16%,” asking Bulwark writer Tim Miller, “Help me understand the calcul…