[tobiasSoftware]

Because the story was misrepresented and it wasn't truly voted on in the normal sense.

In the US Congress, how many people are present matters to the vote. So if a bunch of Congressmen take off, it would give enormous power to the few people who remain. Because of this, there's a gentlemen's agreement that on those sorts of days, the people who are there just clock in and don't actually vote. My understanding is that the daylight savings "vote" was this type of situation where someone violated the gentlemen's agreement and voted on it without a planned vote. It doesn't really affect anything though because it would need to pass both sides of Congress and this was just one of them.

As far as why anyone be against it, I'm not sure, but it wasn't "almost" passed as the media made it sound like.