Rep. Joe Kennedy III (who is, unsurprisingly given his family, a Democrat from Massachusetts) is expected on Saturday to formally announce his Senate primary challenge against Ed Markey at an event in East Boston.

Kennedy, 38, hopes to unseat the 73-year-old Markey, who was a member of the House of Representatives from 1976 to 2014 and a senator since then. Even if Kennedy wins the primary on the back of his name recognition and moves on to become Massachusetts’ next junior senator, he has no business even being in the race.