We over here know better. This is a very good list of who is now even more vulnerable due to their dangerous vote for Obamacare. Betsy Markey is in for a rough election season.
Silver's "index" is his end result of the most vulnerable members.
Obama Sees No Cause for Panic Over Zika, Yet Asks for Nearly $2 Billion in Emergency Funds | Cortney O'Brien
So Much For 'Hiding': GOP Debate Ratings Highest for 2016, Crush Democratic Debate | Christine Rousselle
After Getting Police Escort, Beyonce Spews Black Lives Matter Message at Super Bowl | Cortney O'Brien
Female Bernie Sanders Fans Are Angry At Being Told It's "Their Duty" To Support Hillary Clinton | Christine Rousselle