Warren launched her campaign from MA on Saturday, where she asked her supporters to act against the wealthy power brokers who "have been waging class warfare against hardworking people for decades" and addressed Trump to be "just the latest and most extreme symptom of what's gone wrong in America".
U.S. Sen. Kamala Harris of California also is expected to make her second campaign appearance in SC this weekend.
Others accused Hollywood of hypocrisy, saying it was okay for them to tweet bad things about Trump, but it was off-limits to do the same about a Democrat.
According to details provided by a campaign aide after Warren's appearance at the National Indian Women Honor Luncheon, she introduced Wampanoag Tribe of Gay Head Aquinnah chairwoman Cheryl Andrews-Maltais, a tribal leader and former senior advisor to the assistant secretary of Indian Affairs during the Obama administration.
Warren hasn't directly mentioned the president since she first announced her exploratory campaign on New Year's Eve. "In fact, he may not even be a free person". In addition to her apology to the Post, it was previously reported that Warren called Bill John Baker, the principal chief of the Cherokee Nation, to apologize for the release of her DNA test. "See you on the campaign TRAIL, Liz!" the President tweeted on Saturday.
Aside from the imprisonment crack, Warren spent little time in Iowa discussing Trump's legal issues and caustic persona. "It's to talk about what we understand is broken in this country, talk about what needs to be done to change it".
That shift made her sharp, though brief, shot at Trump on Sunday all the more notable.
"My view on this is: Protect the special prosecutor, let him finish his work without political interference", Warren said on "The View" a year ago when asked about impeachment.
It was at least the third time in a week that Warren has apologised for her past self-identification. She's apologised for claiming Native American identity on multiple occasions early in her career.