Former CPS CEO Paul Vallas and Cook County Comm. Brandon Johnson give victory speeches at Election Night watch parties on Feb. 28, 2023, as both head into an April runoff for mayor. [Don Vincent/The Daily Line] 

Millions of dollars are being pumped into both of the campaigns competing in the mayoral runoff, but the biggest sources of money flowing into Cook County Comm. Brandon Johnson (D-1) and former Chicago Public Schools CEO Paul Vallas’ campaigns in the week since the two made the runoff contrast widely. 

With the candidates allowed to rake in an unlimited amount of campaign cash from donors, Johnson has shored up his campaign coffers with funds from large labor interests. Vallas has been able to add millions to his campaign committee by drawing on support from private equity and investment firms.