The first four clues below have something in common that is revealed by the fifth clue.

1. "........and a cast of _______"
2. Gung-ho campaign
3. Meat pizza topping
4. City of David
5. Just plain folks

Answers:

1. Thousands
2. Crusade
3. Sausage
4. Jerusalem
5. Middle America

Explanation:
1. thouUSAands
2. crUSAde
3. saUSAge
4. jerUSAlem

Credit: Lynn Lempel