In chapter nine of Congressional Election by Herrnson, he gives us the tables for both challenger and incumbent predictors of House vote shares (p.247 p.253). Using these tables we are able to mathematically guess which candidate would be most likely to win the election on November second. In this post I will apply the incumbent factors to Murphy and the challenger figures for Caligiuri and see which one has the highest probability of winning the election.
Starting with Murphy, his base vote is higher at 57.28 due to the fact that he is the running incumbent. Within the 5th district of Connecticut registered Democrats outweigh registered Republicans about 29% to 24%, which is a 5 point difference which adds 0.75 to Murphys base making it 58.03. The next thing that applies to Murphy we must look at how much Caligiur has spent on his campaign. Which is about $1.1 million, and because of that Murphy loses 9.24 points off his base bringing him down to 48.79. But because Murphy has received the most endorsements from local media and because of the partisan tide he gains back 7.24, which leaves him with a score of 56.03.
Now for Caligiuri because he is the challenger he starts off with a much smaller base of 25.29. Starting right off Caligiuri gains points for taking part in a contested primary and the message that most of his ads focus on he gains 6.8 points bringing Caligiuri to 32.09. The next two gains focus on money both spent by Caligiuri and Murphy, because Caligiui has matched $1.1 million to Murphy’s $2.3 million, Caligiuri adds two gains totaling 16.29 points, pushing Caligiur to a total of 48.38.
Using the numbers from above it is easy to see that while this was a close call for Murphy with 56.03 points it seems as though Caligiuri with 48.38 points wont have enough to take away reelection. Knowing that I have done the math out there are still some factors in which Caligiuri would be able to pull out a win but they would need to be on a large scale, the best fitting one that I can think of is that the push for ‘change’ in the country gets more Republican votes out then Democratic ones. But the only thing we can do now is sit back and wait for polls to open and find out who won Connecticut’s fifth.




