Former mayoral candidate Sophia King to endorse Paul Vallas

CHICAGO (CBS)-- Former mayoral candidate Sophia King is expected to endorse Paul Vallas Tuesday. 

The 4th Ward alderwoman is holding a press conference at 9:30 a.m. at Valls's campaign headquarters to announce her endorsement. 

Early voting is currently underway for the mayoral runoff elections. Election day is April 4.