“The first major congressional challenge to executive leadership in the Vietnam War, the Cooper-Church amendment, was proposed then.”

“There's some grunting. The challenge is how fast you go from that tuck to that full position.”

“In September, our largest month in the quarter, advertising has been challenging and visibility remains limited.”

“We are going to be a very challenging team to beat this year. We practice hard and play hard.”

“In the moment of truth, he's going in on a challenge. Despite his physique, he plays with big size.”

“Every time we made a run, they met the challenge and came back. They never cooled off.”

“Literature is made upon any occasion that a challenge is put to the legal apparatus by conscience in touch with humanity.”

“Neal has presided over one of the most challenging and successful times in this news division's history,”

“I like new challenges -- I'm following someone strong, ... I'm hoping this will be the place to stay.”

“I see a proud Colombia with sufficient authority to challenge other nations to control their demand for drugs.”