Senator Tom Coburn (R-OK) introduced an amendment to the health care "fixes" bill that would prohibit use of federal funds to purchase erectile dysfunction ("ED") medications for registered sex offenders.
Coburn must have thought he hit a political trifecta with this amendment. It's about sex (allowed only with an opposite-gender spouse in the missionary position with lights off); and sex offenders ("the gift that keeps on giving" for politicians); and restricting access to a drug (the more regulation, the better where drugs are concerned -- because that works so well now).
Right there are three good reasons for all Republicans (plus a few Democrats) to vote for the amendment. I think Republicans liked it for a fourth reason: it would insert politicians between doctors and their patients. (These are the same people who want to keep government out of people's lives.)
Coburn's amendment was a Republican vote-magnet for a fifth reason: if the amendment passed, then the whole "fixes" bill would have to be returned to the House of Representatives for another vote. Coburn could have introduced his proposal as a separate bill but he chose to use it as a way to obstruct passage of the "fixes" bill.