Spirit Airlines has ​won the ‌backing of two ​of ​its three major ⁠creditor ​groupings needed ​to secure a $500 million ​bailout ​from U.S. President ‌Donald ⁠Trump’s administration, the Financial ​Times ​reported ⁠on Tuesday, citing ​two ​people ⁠close to ⁠the ​negotiations.