While four congressional districts are ranked on CNN's Key Races , the one major House race to watch tonight is a Democratic primary that's turned some of the party's biggest leaders and outside supporters against each other. Bernie Sanders and Kirsten Gillibrand joined NARAL, Planned Parenthood, EMILY's List, the Human Rights Campaign and Illinois Democratic Reps. Schakowsky and Gutierrez in supporting Newman for Congress. Lipinski took in the support of the Illinois AFL-CIO, Illinois AFSCME, dozens of local mayors, House Democratic leader Nancy Pelosi, the Chicago Tribune and Sun-Times. Money, money, money: With over $150 million raised so far, the gubernatorial race here could end up as one the most expensive governor races in history. Rauner, a millionaire former businessman, could end up facing billionaire J.B. Pritzker, should he win tonight's Democratic primary.

Source: CNN March 20, 2018 10:18 UTC