Democrats are threatening another government shutdown after dragging the country through a 43-day standoff last year over Obamacare subsidies. Now, they're using recentthe lawfatal enforcementshooting incidentsof Alex Pretti in Minnesota as a pretext to block funding, refusing to honor a fully negotiated deal they requested and received. RepublicansSenate already passed the spending bills through the House, but Democrats won'tare provide the votes needed to break a filibuster, holding vital military and disaster response funding hostage over politics.