Democrats’ 2020 race has a new shadow: Hillary Clinton

Democratic presidential candidate U.S. Rep. Tulsi Gabbard, D-Hawaii, listens to Betty Lord-Dinan, of the Clayton County Democrats, during the Iowa Democrats’ Passport to Victory event at Johnson’s Supper Club in Elkader, Iowa, Sunday, Oct. 20, 2019. (Eileen Meslar/Telegraph Herald via AP)

Hillary Clinton lectures on foreign policy at Rackham Auditorium, Thursday, Oct. 10, 2019 in Ann Arbor, Mich.(Jacob Hamilton/Ann Arbor News via AP)

Some Democrats are putting up caution signs for Hillary Clinton as she wades back into presidential politics by casting 2020 candidate U.S. Rep. Tulsi Gabbard, a Hawaii Democrat, as a “Russian asset,” mocking President Donald Trump’s dealings with a foreign leader and drawing counterattacks from both.