In the end, the opposition proved so powerful that she was forced to scale back the proposal.
Felter's opposition had proven to be more than philosophical.
Vigorous opposition to the international arms trade, in an era of intense regional conflict, could prove to be a popular stance.
Now, he said, the opposition must prove its mettle, and it needs help from the West that promised it.
We won this, of course, but the opposition proved stronger than we had expected.
But opposition by public employee unions could prove a major obstacle.
The opposition proved fatal - though mainly because expectations of dramatic improvement were not met.
"Going negative" hurts you only if the opposition can prove you're lying or make it look like you've been unfair.
However, opposition and contradiction does not inherently prove something is true in Catholic thought, but only acts an additional sign of a truth.
And so Israeli opposition could have proven fatal to the American plan.