Mark Your Calendars: The second congressional primaries in the country are in Illinois on Tuesday. Democrats are targeting four GOP-held seats in the state, where EMILY’s List has played an early, influential role backing candidates it thinks will be viable in the general election. But the Prairie State primary that’s received the most attention is actually in a solid Democratic seat. EMILY’s List is involved in this race too (although it took a while for the group to endorse), and it’s quickly become a flashpoint in the fight over the identity of the Democratic Party. On one side is first-time candidate Marie Newman, who’s backed by Vermont Sen. Bernie Sanders (who carried the 3rd District in 2016), two members of the Illinois delegation (pictured above), New York Sen. Kirsten Gillibrand, SEIU and a coalition of reproductive rights and progressive groups.