Organized labor is in no hurry to back a 2020 Democrat.

There are several reasons, including the bulky field of candidates, many of whom have long records supporting unions. They want to back somebody with a strong, or at least decent chance, of beating President Trump in fall 2020. The June 2018 Janus v. AFSCME decision, which ended compelled union dues for public employees, also plays into the slower-than-usual approach.