Michigan state Sen. Mallory McMorrow announced Sunday that she is suspending her campaign for U.S. Senate, narrowing a marquee Democratic primary to a two-way race a month before the vote. Why it matters: It is a major shakeup to what has already been a chaotic Democratic primary in a Trump-won swing state Democrats likely need to retake the Senate. McMorrow's withdrawal makes the primary a two-person race between moderate Rep. Haley Stevens (D-Mich.) and progressive Dr. Abdul El-Sayed. The dev