washington u.s. senator jeff flake one republican party vocal advocate ease restrictions u.s. deal cuba friday call congressional leaders allow vote legislation lift restrictions american travel time senate leadership finally allow vote bipartisan bill fully lift archaic restrictions exist travel americans country world flake arizona say president donald trump announce clampdown u.s. travel trade island freedom americans travel cuba act lead flake democratic senator patrick leahy vermont co-sponsored 55 senators flake say think could get 70 vote 100-member senate chamber republican leaders allow vote u.s. republican senator want congress vote cuba travel bill