The White House is reportedly considering a plan to take over Spirit Airlines and use part of the bankrupt carrier’s fleet for military missions.   Under the proposal, President Trump would invoke the Defense Production Act to loan Spirit Airlines money for national defense purposes, CBS News reported on Friday.  The Pentagon would then use the budget airline’s “excess capacity for transporting troops, military cargo or other missions,” the outlet said, citing sources.  Spirit’s creditors would need to sign-off on the strategy. Spirit Airlines employs about 17,000 workers.…