21.  In his newest incarnation, former House Speaker Newt Gingrich is returning to an old model to help him raise large amounts of money.

22.  Indeed, many old models are still compatible with current phone networks.

23.  In the old model, people trudged to repositories of information like classrooms and libraries.

24.  It may be an old model, they said, but it was still in warranty.

25.  It was introduced without a price increase compared with the old model.

26.  It was the Cold War defeat of the old Soviet model, after all, that set in motion the collapse of Yugoslavia.

27.  Its main models, such as the mid-sized Prince and compact Lemans, are old models provided by the U.S. company almost a decade ago.

28.  Modify it along the old USFL model, where a team has a limited number of challenges.

29.  On Thursday, he outlined six major goals as the Pentagon moved from the old model of nuclear deterrence and the ability to fight two simultaneous conventional wars.

30.  Prison officials have begun to phase in the new pants as they come off the inmate assembly line, replacing the old ventilated model.