The Answer is SEVEN:

1. one to deny that a lightbulb needs to be replaced

2. one to attack and question the patriotism of anyone who has
questions about the lightbulb,

3. one to blame the previous administration for the need of a new
lightbulb,

4. one to arrange the invasion of a country rumored to have a secret
stockpile of lightbulbs,

5. one to get together with Vice President Cheney and figure out how
to pay Halliburton Industries one million dollars for a lightbulb,

6. one to arrange a photo-op session showing Bush changing the
lightbulb while dressed in a flight suit and wrapped in an American flag,

7. and finally one to explain to Bush the difference between
screwing a lightbulb and screwing the country.