nol one knows exactly. the obamacare replacement is being negotiated behind closed doors. garret has a look on capitol hill. where do things stand? >> reporter: democrats have been looking for a way to fight back. tonight they are going to take control of the senate floor, offering speech after speech, hitting both what they think is in this bill and the process by which it has been written almost entirely in secret. the senate bill to repeal obamacare would be washington's hottest summer read. >> if we get a copy, will you send me a copy. >> reporter: senate republicans must negotiate among themselves to get to 50 votes. now tinkering with obamacare's medicaid expansion and exemptions for those with