The schedule is full of challenges, beginning with Saturday's game at Pittsburgh.
The legislators who wrote it assumed that it would face an immediate legal challenge, beginning a journey to the Supreme Court.
Psychologists and psychiatrists are still befuddled by basic challenges, beginning with diagnoses, which, for children, can change as they develop.
For Mr. Obama, who flew to Washington on Sunday to join his family, it adds a new crisis to an agenda already packed with challenges, beginning with the economy.
At the same time, this research project looks at what types of challenges beginning teachers encounter in school.
Leading up to the project's debut, the papercraft artists faced four months of challenges, beginning with the very scale and scope of the pieces.
She knows that the biggest challenge – beginning school in the first place – has already been overcome.
Now the real challenge begins.
From there, the real challenge begins.
The real challenge begins after the girls reach their homes.
This challenge began on the level of definition and understanding.
