After announcing she would vote for Donald Trump in the upcoming election — Nikki Haley has formally hitched her wagon back to the MAGA train in hopes of reoccupying the White House. But an ex-Trump White House aide warns that Haley’s faithful supporters — who gave the 45th an impressive run in the Republican primary — may not fall in line behind her. After former UN Ambassador Nikki Haley came forward on Wednesday to confirm she would be backing former President Donald Trump come November 5 election, Alyssa Farah Griffin remained skeptical the Haley voters want another Trump term. Want more b…