Singer Lizzo on Saturday condemned those who might question whether Sen. Bernie Sanders Bernie SandersSirota reacts to report of harassment, doxing by Harris supporters Republicans not immune to the malady that hobbled Democrats The Hill's Morning Report - Sponsored by Facebook - Republicans lawmakers rebuke Trump on election MORE's (I-Vt.) age is a factor in the 2020 presidential race, calling on her followers to "drop the ageism shit."

In a series of tweets, the singer pointed to President Trump Donald John TrumpFederal prosecutor speaks out, says Barr 'has brought shame' on Justice Dept. Former Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick MORE's own age while encouraging followers to "just listen" to Sanders's message. She also praised Sanders's fellow Democratic presidential rival Sen. Elizabeth Warren Elizabeth WarrenOvernight Defense: Appeals court revives House lawsuit against military funding for border wall | Dems push for limits on transferring military gear to police | Lawmakers ask for IG probe into Pentagon's use of COVID-19 funds On The Money: Half of states deplete funds for Trump's 0 unemployment expansion | EU appealing ruling in Apple tax case | House Democrats include more aid for airlines in coronavirus package Warren, Khanna request IG investigation into Pentagon's use of coronavirus funds MORE (Mass.).

"I hear a lot of about Bernie Sanders being 'too old' to run or be president," she wrote. "But we’ve currently got a 73-year old in office so drop the ageism shit and just listen to what he’s got to say."

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She added that Warren "is a dope candidate as well."

At 77, Sanders is the oldest candidate in the 2020 presidential race, though several other top 2020 contenders are also in their 70s: Warren is 70, while former Vice President Joe Biden Joe BidenFormer Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick Bloomberg rolls out M ad buy to boost Biden in Florida MORE is 76.

Sanders, Warren and Biden are each battling for a chance to go up against Trump, who is himself 73.

Sanders has himself dismissed concerns about his age in the past, saying earlier this year that critics should "follow" him on the campaign trail.

"I’m just sayin we worried bout the wrong things let’s just listen to the policies and stop talkin bout the shit that don’t matter," Lizzo wrote Saturday.

I hear a lot of about Bernie Sanders being “too old” to run or be president... but we’ve currently got a 73-year old in office so drop the ageism shit and just listen to what he’s got to say. pic.twitter.com/TV9chgvzYq — |L I Z Z O| (@lizzo) August 24, 2019

Absolutely @ewarren is a dope candidate as well I’m just sayin we worried bout the wrong things let’s just listen to the policies and stop talkin bout the shit that don’t matter ya know https://t.co/ZmCH79hREZ — |L I Z Z O| (@lizzo) August 24, 2019

Asked whether her initial tweet was an endorsement of Sanders, Lizzo responded, "It’s a call to action for us to focus and get unified as a party."

"We need to figure out how to get trump out of office and it ain’t by talkin about Bernie Sanders’ age," she added.

It’s a call to action for us to focus and get unified as a party... we need to figure out how to get trump out of office and it ain’t by talkin about Bernie Sanders’ age. https://t.co/SYOd5s0c6E — |L I Z Z O| (@lizzo) August 24, 2019

Warren and Sanders are competing for support among the party's progressive wing, while Biden has continued to broadly lead polls of the Democratic race.

Several lower-tier candidates dropped out of the crowded Democratic primary this week, narrowing the number of candidates competing for the nomination to 21.