Senators Moran, Capito, and Portman announced their opposition to the healthcare bill

on Tuesday afternoon.

McConnell no doubt knew about this when he decided to postpone the vote.

http://thehill.com/policy/healthcare/339713-sixth-gop-senator-announces-opposition-to-healthcare-bill

Republican Sens. Jerry Moran (Kan.), Shelley Moore Capito (W.Va.) and Rob Portman (Ohio) announced Tuesday afternoon that they will vote against the Senate GOP bill to repeal and replace ObamaCare in its current form.

SNIP

Nine GOP senators now oppose the bill, which leaves Republicans with a steep climb to get the measure through the Senate. Republicans have a slim 52-48 majority in the upper chamber, meaning they can only afford to lose two GOP votes, assuming no Democrats support the bill.

Sens. Susan Collins (Maine), Dean Heller (Calif.), Rand Paul (Ky.), Ron Johnson (Wis.), Mike Lee (Utah) and Ted Cruz (Texas) are also opposed to the Senate's ObamaCare repeal bill in its current form.