This. The general public has no idea how much posturing is involved in such votes. These people will even trade votes: the Dem says "Please, I want to appear st

This. The general public has no idea how much posturing is involved in such votes. These people will even trade votes: the Dem says "Please, I want to appear strong on defence, so I'll vote no, while you (the Republican) can vote yes". Source: knew a couple of people who had worked as aides to congresscritters