president reference that are supposed to cover people are pre-existing conditions but give states a lot more leeway. explain. >> hi, ana. that's right. the reason this is important is because this has been one of the major sticking points on getting republicans to come together on this latest effort to repeal and replace obamacare. you have a lot of moderate republicans who are very concerned about making sure that people with pre-existing conditions continue to get coverage and coverage that is affordable. in this latest gop proposal, insurers are required to cover people with pre-existing conditions, but they could be allowed to charge them more than other people in the plan if they ever let their coverage lapse, for instance. and there are a lot of details still being worked out. as you mentioned, vice president mike pence on "meet the press" went into a little bit more detail about how this coverage of pre-existing conditions would work. watch. >> we're basically borrowing an idea from the state of maine that has seen a significant drop in premiums for people on their