Chief among what’s at stake with a possible Obama veto is the 1.3 percent annual pay raise due to troops, one defense expert said. “The biggest issue here is the military pay raise which will be stalled by a veto.o override an Obama veto, Republicans would need two-thirds majorities in both the House and the Senate. Earlier this month, the House approved the defense bill with a 270-156 vote, 20 short of the 290 needed to override Obama's veto. The Senate passed the measure by a vote of 70-27 Wednesday evening.