nicoderm cq. ♪

after president obama officially endorsed clinton with this video posted to her website. >> so i want those of you who have been with me from the beginning of this incredible journey to know i'm with her. i'm fired up. i cannot wait to get out there and campaign for hillary. >> reporter: donald trump quickly dismissed the president's endorsement though. tweeting obama just endorsed crooked hillary. he wants four more years of obama but nobody else does. clinton's campaign shot back at trump with a short and sweet, delete your account. that tweet went viral and quickly became the most retweeted post she's ever had. with more than 370,000 as of this morning. but her use of the word delete also got plenty of responses. in light of the scandal surrounding her state department e-mails. rnc chairman reince priebus tweeted, if anyone knows how to use a delete key, it's you. and even disgraced new york congressman anthony weiner responded to the post, tweeted too late for some of us. donald...