Transportation Secretary Sean Duffy slammed his predecessor for sowing the seeds of Spirit Airlines’ dramatic collapse when the Biden administration killed a $3.8 billion merger deal with JetBlue. “Spirit tried to merge with JetBlue. The Joe Biden-Pete Buttigieg administration and DOJ tanked that deal,” Duffy told ABC’s “This Week” on Sunday . “Immediately after that, they filed for bankruptcy.” “This was in the works for some time. I’m proud of the American airlines that have stepped up to take care of the passengers of Spirit, making sure they get home.” “Spirit tried to merge with JetBlue. The Joe Biden-Pete Buttigieg administration and DOJ tanked that deal. Immediately after that, they filed for bankruptcy,” DOT Secretary Sean Duffy charged on ABC News. ABC News Spirit Airlines abrubtly shut down Saturday after 34 years. REUTERS The ultra-low-cost airline crashed and burned early Saturday, costing some 17,000 jobs.…