>>How about dressing as a make-believe fighter pilot and flying to a carrier to declare "mission accomplished"?
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>Is there another set of flight suite for non-military passenger on a figher jet?

No. There isn't, for a fighter jet.

BTW, He did not fly in a fighter jet, but in an S3 Viking, an anti-submarine plane.

He could have flown in a C2 transport, normally used to ferry cargo and passengers between shore and carriers, but that would not have been good enough for the photo opportunity and politicians are all about image and perception, not substance and reality.