21.   The treatment he received from the fans and, worse, some of his teammates, had undermined his ability to play up to his potential ability.

22.   Their continued status as a noncontender, meanwhile, will most likely undermine their ability to draw at Camden Yards.

23.   These nations say such standards would undermine their ability to compete and would leave them open to punitive trade sanctions levied by the United States and other rich countries.

24.   This effectively would undermine its ability to play a major role in the hemisphere, which is dominated by the massive U.S. economy.

25.   This misguided proposal undermines the ability of the states to try more enlightened approaches.

26.   Treasury Department officials have already attacked the plan, saying the new board would undermine their ability to administer the U.S. revenue code.

27.   Treasury Department officials, however, have blasted the proposal, saying it would undermine their ability to administer the U.S. revenue code.

28.   Treasury Department officials, however, have criticized the proposal, saying it would undermine their ability to administer the tax code.

29.   Treasury Department officials have already attacked the plan, saying it would undermine their ability to administer the U.S. revenue code.

30.   We need to take care that in seeking to protect our safety, we do not undermine our ability to keep our collective eye on government.