1.   But MacKay hopes vouchers will have a tremendous impact on his struggling campaign.

2.   My generation knows that vouchers have serious limitations.

3.   Note that travel vouchers often have to be used within a specified time and sometimes only by you.

4.   Vouchers had the support of most of the Republican leadership, but the proposal was misguided.

5.   With all the debate, the word voucher has such a negative connotation.