can you explain the following (via HuffPo):
Jenkins, a freshman Republican representing the 2nd District of eastern Kansas, is part of a GOP-dominated congressional delegation that has largely decided against what’s become known as the public option in federal health care reform. The delegation — split 5-1 in favor of the GOP — went into its summer recess opposed to the idea, and nothing in the town hall meetings Republicans have held appears to have changed that.
what delegation is this writer referring to? why is dominated by the GOP? the article doesn’t clarify, and i’m confused, because it sounds like the health care debate in congress is being led by the GOP, despite the fact that they’re not in power.