U.S. Rep. Haley Stevens is closing Michigan’s Democratic Senate primary by arguing she is the party’s strongest candidate to beat Republicans. Senate Democratic leader Chuck Schumer and other establishment figures have rallied behind her as they try to hold a critical Senate seat. But Stevens faces a strong challenge from Abdul El-Sayed, who says Democrats should embrace a more progressive agenda instead of running to the middle. Stevens is relying on retail campaigning, establishment support and heavy outside spending, while El-Sayed has energized grassroots voters. The race has become a test of whether Democratic primary voters still value electability above calls for change.