I never said it didn't happen. Don't do that. It's unquestionably a different dynamic. If the party is in power, then the party is in power. Period. They have

I never said it didn't happen. Don't do that. It's unquestionably a different dynamic. If the party is in power, then the party is in power. Period. They have less incentive to listen to smaller factions. Do they? I sure hope so. But it's not the same. Furthermore, these internal deals are more likely to be kept private since theres no benefit to airing everything to the press, the public and the opposition. In a multi-party system almost all those deals are public. Thus, voters can decide if everyone lived up to their promise.