All you are doing now is defining a very broad statement of party politics. Both sides are lobbied because hedging the bets is a good Capitalist method. I know I hedge mine.
Democrats and Republicans have far different political platforms.
And enact far different policies? Seriously?
Of course they put forward far different policies which is why majorities are mostly necessary and why the fight over a legislating judiciary.
Enacting policy is a horse of a different color.
Well, I simply don't see a dime's worth of difference between Obama and Romney, and I think it's fairly funny (in a mostly depressing way) that the people who so virulently want Obama out, are being offered up a virtual clone as his replacement.