Black men have been a focus for Harris and her allies long before Obama's recent challenge The Associated PressObama, the ‘hopey-changey guy,’ tries to close the deal for Harris CNNObama’s Admonishing Tone to Black Men Presents a Risk for Democrats The New York TimesBarack Obama Laughs at Trump Adult-Diaper Joke as Trump Proves He’s a 78-Year-Old Baby Vanity Fair