A secret hold.
A few weeks ago, WNYC began working with the public and with media organizations -- including Bama Fact Check -- to get members of the Senate to go on the record, either confirming or denying that they were the source of the secret hold.
The effort has narrowed down the list of possible secret holders to two -- either Sen. Jeff Sessions, R-Alabama, or Sen. John Kyl, R-Arizona. Weeks ago, Sessions' spokeswoman told Bama Fact Check that the senator doesn't comment on holds. Kyl has sent constituents a letter saying senators "did not have sufficient time to review" changes to the House version of the bill.
To learn more about the bill and the WNYC effort, go to the radio station's website.