Whether it will damage his campaign remains to be seen.
He could also damage his campaign by vetoing a bill strongly sought by the state's powerful and politically active teachers' unions.
Gary Hart's strong showing in 1984 gave him the advantage but extramarital affairs damaged his campaign.
The description damaged her campaign for the French presidency.
All of them said it was too early to tell whether this episode would damage his campaign.
But she still found herself addressing the fliers, if only to play down suggestions that the fuss has damaged her campaign.
Vivien had told him on the phone that she had information that could damage his campaign, you see.
And if he performs below expectations, it could damage his campaign.
You might damage my presidential campaign by being heroes, but that's all.
But it has damaged his campaign and raises serious questions about his judgment.