The RINO Senate would probably moderate any extremism from the House. RINO's are not doing a decent job now. I doubt things would improve if Repbulicans lost some seats.
The GOP will be sent a lesson that ignoring the conservative wing means loss of power, just as much as ignoring moderates. Awful tough lesson to learn. What if democratic success carried through to 2008? Can you say President Hillary?????
The Democrats will have lost a campaign issue for 2008 when they would try to argue that a GOP-led Congress is leading us down the road to ruin. Now that could happen. After all, Americans usually blame the ruling party.
The mainstream would get a quick reminder, just in time for 2008, what unstable kookballs now run the Democrat party. Yeah, like the mainstream would ever learn (or even admit) that kookballs are runnig the democratic party. While nobody wants Nancy Pelosi, John Conyers or Alcee Hastings running the House, a quick taste of what it looks like might be the very BEST thing that could happen to reawaken the conservative base and drive them to the polls in record numbers. Again, I would worry that an '06 victory would transfer to an '08 victory.
And in a sense, it will. If Republicans can keep a majority, then that will be enough to move ahead to 2008. But if democrats win now, then......
If the democrats loose in 2006 then they will move even further left into the moveon.org wing of lunacy.
It will be an electoral defeat that will essentially end them as a national political party.
THAT is very much worth it.
A better question. What makes you think they will improve if we return all of them?