Fallacies: Begging the Question and Ad Populum

Examples of Ad Populum:

1. Nine out of ten of my constituents oppose the bill, therefore it is a bad idea.
2. Nine out of ten of my fellow congressmen favor the bill, therefore it is a good idea.

Examples of Begging the Question:

1. "The belief in God is universal. After all, everyone believes in God." 
2. "If such actions were not illegal, then they would not be prohibited by the law."