A major political showdown is unfolding in Michigan as Democratic progressives rally behind Abdul El-Sayed’s Senate campaign. Representative Alexandria Ocasio-Cortez, Senator Bernie Sanders, and Representative Rashida Tlaib joined El-Sayed at a Detroit campaign event, highlighting a push from the party’s progressive wing.

The progressive duo rallied Saturday for Abdul El-Sayed, whose Democratic Senate primary clash with Rep. Haley Stevens represents the latest battle over the party’s future.

Bernie Sanders (I-VT), the octogenarian socialist, has played kingmaker in a series of Democratic primaries this cycle.