Twitter blasts Donald Trump after he seems to taunt Elizabeth Warren with the TRAIL reference, as in the Great Trail of Tears.

Warren, who officially launched her presidential campaign, has been repeatedly attacked by Trump as Pocahontas, which is considered a racial slur by many. She apologized earlier this week for claiming to be an American Indian on a Texas bar registration card.

Trump, who has lied and cheated his way to the White House, seems to be triggered by Warren. He tweeted: “Today Elizabeth Warren, sometimes referred to by me as Pocahontas, joined the race for President. Will she run as our first Native American presidential candidate, or has she decided that after 32 years, this is not playing so well anymore? See you on the campaign TRAIL, Liz!”

Twitter responded: