CNNKamala Harris stumps for 2018 candidates in Iowa -- as 2020 nearsCNNAnkeny, Iowa (CNN) Sen. Kamala Harris of California launched a seven-stop tour of Iowa on Monday to galvanize the early vote for down-ballot Democratic candidates -- as prospective 2020 presidential candidates aggressively jockey for position ...The Trailer: The 2020 Democrats are already battling for the black voteWashington Postall 101 news articles »