Actor Rob Lowe mocked Sen. Elizabeth WarrenElizabeth Ann WarrenTrump hits polling on Fox News: 'Something weird going on at Fox' Trump hits polling on Fox News: 'Something weird going on at Fox' 2020 Democrats look to cut into Biden's lead with black voters MORE (D-Mass.) and her past claims of Native American ancestry on Saturday following her presidential campaign announcement.

In a tweet Saturday afternoon, the 'West Wing' actor joked that the senator's candidacy would give new meaning to the title "Commander in Chief."

"Elizabeth Warren would bring a whole new meaning to Commander in 'Chief,'" Lowe wrote.

He later deleted the post, saying it was a "joke."

ADVERTISEMENT

His initial tweet came hours after President TrumpDonald John TrumpTrump says 'Failing New York Times' should be held 'fully accountable' over Russia report Trump says 'Failing New York Times' should be held 'fully accountable' over Russia report Trump tweets ICE will begin removing 'millions' of undocumented migrants MORE made a similar remark on Twitter that appeared to reference the 1833-1850 Trail of Tears, a forced relocation of thousands of Native Americans.

"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!" Trump tweeted earlier in the day.

Warren, who announced earlier late last year that she was exploring a 2020 bid for president, announced the official start of her campaign on Saturday in Lawrence, Massachusetts on Saturday. The senator joins a crowded field of Democratic contenders including Sens. Kirsten GillibrandKirsten Elizabeth GillibrandOvernight Health Care: Democrats attack after Trump revives talk of ObamaCare replacement | Cruz, Ocasio-Cortez efforts on birth control face major obstacles | CVS investing M to fight teen e-cig use Overnight Health Care: Democrats attack after Trump revives talk of ObamaCare replacement | Cruz, Ocasio-Cortez efforts on birth control face major obstacles | CVS investing M to fight teen e-cig use Trump's 2020 campaign strategy is to be above the law MORE (D-N.Y.), Kamala HarrisKamala Devi HarrisTrump hits polling on Fox News: 'Something weird going on at Fox' Trump hits polling on Fox News: 'Something weird going on at Fox' 2020 Democrats look to cut into Biden's lead with black voters MORE (D-Calif.), and Rep. Tulsi GabbardTulsi GabbardJuan Williams: Trump's incredible shrinking GOP Juan Williams: Trump's incredible shrinking GOP Overnight Defense: Trump doubles down on claim Iran attacked tankers | Iran calls accusations 'alarming' | Top nuke official quietly left Pentagon | Pelosi vows Congress will block Saudi arms sale MORE (D-Hawaii).

She has faced criticism in the past and has apologized for claiming Native American ancestry, noting earlier this month that she understands the difference between DNA indicating a possible Native American ancestor and tribal heritage.

--This report was updated on Feb. 10 at 8:43 a.m.