you could say they're preemptive. the government is promising to lay out the details of its plan next week. kristin: preemptive strikes. ryan chilcote live, thank you. leland? leland: union workers will be critical in the 2020 caucuses, especially in iowa. former vice president joe biden with them today. ellison barber on the road as well. hi, ellison. >> reporter: hey, leland. president trump did well with union voters in 2016. democrats are hoping to win them back. biden, buttigieg, sanders just a few of the names we expect to hear from today. stay with us, more in a minute. ♪ at bayer, we're more than a healthcare company.