Topic: Tom MacArthur

Gil Cisneros; Katie Porter (AP/Ringo H.W. Chiu/Getty/Mario Tama)

Orange County goes all blue

Igor Derysh
Andy Kim; Tom MacArthur (AP)

Obamacare repeal genius goes down

Igor Derysh
Andy Kim; Katie Porter; Josh Harder (AP/Julio Cortez/Getty/Mario Tama/Alex Edelman)

Most undecided House races lean blue

Igor Derysh
Andy Kim; Debbie Mucarsel-Powell; Antonio Delgado (AP/Julio Cortez/Wilfredo Lee/Seth Wenig)

Five early races that may tell the tale

Andrew O'Hehir
(AP Photo/Mel Evans)

MacArthur steps down

Matthew Rozsa
(AP Photo/Mel Evans)

Matthew Rozsa
(Getty Images/Justin Sullivan)

Charlie May