House Democrats are itching for a fight with the new GOP majority over who should qualify for committee assignments, tapping Reps. Adam Schiff (Calif.) and Eric Swalwell (Calif.) to sit on the Intelligence Committee in the face of Republican vows to keep them off of the powerful panel. A similar collision is likely to play out in a separate arena over Rep. Ilhan Omar, the third-term Minnesota lawmaker who is expected to be named by Democrats this week to the House Foreign Affairs Committee, despite GOP promises to boot her from the panel. The Democrats’ moves — and the imminent...