Lawmaker’s exit gives voters choice between progressive Abdul El-Sayed and centrist Haley Stevens in must-win seat Mallory McMorrow, a Michigan Democrat, has dropped out of a contentious US Senate primary campaign, setting up a straight fight between the party’s progressive and establishment wings – represented by Abdul El-Sayed, a former public health official, and Haley Stevens, a congresswoman. McMorrow’s retreat marks the end of a center-left bid to hold the seat being vacated this year by t