The votes from Republican Sens. Susan Collins, John McCain and Lisa Murkowski to stop their party's repeal-Obamacare juggernaut were demonstrations of genuine courage. The appearance of this virtue in a dark time is not necessarily miraculous, but I couldn't help noticing the striking intervention in this debate by 7,150 American nuns who called the Senate GOP's core proposal “the most harmful legislation for American families in our lifetimes.”