Sen. Elizabeth Warren (D-Mass.) on Thursday responded to President Trump’s criticism of her potential presidential bid, telling reporters that he should focus on “getting the government back open” rather than her White House aspirations.

NBC News reported that Warren said Trump “can bluster forever” but should focus on more important issues after he shared a photoshopped logo mocking her consideration of a 2020 presidential campaign.

“We’re now in the 13th day of the shutdown, we have hundreds of thousands of federal employees not getting their paychecks and work that’s not being done all around this country,” Warren said. “Those are the issues we need to worry about, and that’s where we need to focus.”

{mosads}”Across this country wages are flat, across this country the cost of health care, the cost of sending your kids to college, the cost of housing, the cost of retirement are going up, up, up,” Warren continued. “Those are the things that matter to hard working families, and the reason that those things are happening are because of bad decisions being made right now in Washington.”

The president earlier Thursday tweeted out an image that read “Warren 1/2020th,” a play on “Warren 2020.” The fraction was a reference to DNA test results released in October that showed Warren had a Native American ancestor several generations ago.

The design of the image, which originated with the conservative outlet The Daily Wire, appeared to be based on Sen. Bernie Sanders’s (I-Vt.) 2016 presidential campaign logo. 

pic.twitter.com/JzfXMAPwKP

— Donald J. Trump (@realDonaldTrump) January 3, 2019

Warren on Monday announced the formation of an exploratory committee to consider a run for the White House, becoming the most prominent Democrat thus far to wade into the 2020 presidential race.

The senator made the announcement in a video sent to supporters and posted on Instagram and YouTube that highlights her family history, laments the struggles of the middle class and lays out her desire to address economic issues.

Trump and other conservatives have seized on Warren’s past claims of Native American heritage in their opposition to the progressive senator. The president has repeatedly referred to her with the racially charged nickname “Pocahontas.”

Warren sought to address the criticism in October by releasing the results of a DNA test that showed “strong evidence” she had a Native American ancestor, likely six to 10 generations ago.

The Boston Globe reported in October that the results of the test indicate it’s possible Warren is anywhere from 1/64th to 1/1,024th Native American.