new york/san francisco legal challenge president donald trump temporary travel ban people muslim-majority countries heat next week two u.s. appeal court consider whether constitutional legal fight may end u.s. supreme court perhaps fall many months trump first issue executive order january say urgent need halt immigration unite state 90 days officials review visa process trump drop original travel order unfavorable legal rule replace limit ban challenge appeal court two coast argue unite state need tighten national security measure trump attempt limit travel one first major act office fate ban one indication whether republican carry promise tough immigration national security omar jadwat attorney american civil liberties union argue case 4th u.s. circuit court appeal virginia monday say fact much time pass since ban issue proof press national security need first place court fight give challenge order opportunity argue government never intend travel pause temporary say buzz frahn attorney simpson thacher bartlett palo alto california whose firm closely track ongoing litigation almost 100 days original travel ban government say period 90 days reset administration issue new order march department homeland security continuously examine ways enhance screen vet process shut terrorist criminal pathways unite state agency spokesman david lapan say improvements classify others public department begin ways enhance security immigration system say email opponents include state civil right group say first ban revise ban also put halt refugee admissions country four months discriminate muslims government argue text order mention specific religion need protect country attack 4th circuit decide fate rule maryland district judge strike section revise executive order bar visitors syria iran libya sudan yemen somalia hear take place 14 full-time judge appellate court ten appoint democrats four republicans march 15 three-judge panel san francisco-based 9th u.s. circuit court appeal review decision hawaii judge halt travel portion ban also section bar refugees judge sit panel seattle assign identities make public 9th circuit block trump first ban february unanimous vote one republican-appointed judge two-democratic appointees trump lash rule twitter say ready fight supreme court nation high court likely hear case federal appeal court reach opposite rule issue great national importance accord legal experts supreme court session end june take case would probably hear justices return october trump travel ban back u.s. court next week battle stretch