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’s sister Valerie Biden Owens said "unhinged" recent attacks on her brother by 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 indicate he believes "we’re the guy to beat" in 2020.

Biden Owens, who managed her brother’s Senate campaigns and first two presidential runs, made the remarks to voters at two South Carolina events to supporters of the former vice president, according to BuzzFeed News.

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“The part that is, not refreshing — hopeful to me, or makes me feel good, is that Trump thinks that we’re the guy to beat. It’s perverse, it’s backwards. But he’s coming after us. I don’t want to protest too much, but the press has done their job on this. We haven’t had to do it. There’s nothing there there. Now it’s China," she added, referencing Trump's call last week for China to investigate Biden, following a similar request that he made to Ukraine. "I mean, this guy’s unhinged.”

Asked in South Carolina how her brother was dealing with the impeachment inquiry stemming from Trump’s attempts to get Ukraine to investigate the former vice president's son Hunter, Biden Owens responded, “Well, I can tell you that he does better than I do with it,” according to BuzzFeed News.

“It’s not pleasant. But Trump has really laid out all of his cards. This is really not about my family. He has chosen my family to be the vehicle that he can [use to] influence the election,” she added.

The remarks are similar to comments made by Biden, who has said Trump’s attempts to spur an investigation indicate he knows Biden would "beat him like a drum" next year.

Biden is the current front-runner to capture the 2020 Democratic nomination, though he faces a crowded primary field and a surging campaign from 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 (D-Mass.).