Joe Biden Joe BidenSenate Republicans face tough decision on replacing Ginsburg What Senate Republicans have said about election-year Supreme Court vacancies Biden says Ginsburg successor should be picked by candidate who wins on Nov. 3 MORE, a leading Democratic presidential candidate, said Sunday that the nation would be better equipped to respond to outbreaks such as the coronavirus pandemic if he were serving in the White House.

“No President can promise to prevent future outbreaks. But I can promise you that when I'm President, we will prepare better, respond better, and recover better,” the former vice president wrote in an op-ed published by CNN.

“We will lead with science, listen to experts, and heed their advice. We will rebuild American leadership and rally the world to meet global threats. And I will always, always tell the truth. That is the responsibility of a President,” he added.

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In the op-ed, Biden outlines many of proposals laid out in his plan to combat COVID-19, which he released on Thursday.

Biden’s plan calls for a number of measures, including making free testing available for Americans.

Every American who needs one should be tested at no charge, and the White House should measure and report each day how many tests were ordered, completed and returned positive, Biden wrote.

He also called for an increase in capability to prevent and treat the coronavirus by preparing hospitals for an influx of patients.

In the new op-ed, Biden also called out President Trump Donald John TrumpObama calls on Senate not to fill Ginsburg's vacancy until after election Planned Parenthood: 'The fate of our rights' depends on Ginsburg replacement Progressive group to spend M in ad campaign on Supreme Court vacancy MORE for refusing to “take responsibility” for the government's response.

“When asked a legitimate public health question, he said, ‘Yeah, no, I don't take responsibility at all.’ It is the job of the President to take responsibility -- and his response is unacceptable,” Biden wrote.

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Trump said as he declared a national emergency on Friday that he does not take responsibility when asked about public testing delays.

Biden also wrote that the government’s “ability to respond effectively has been undermined by the hollowing-out of our agencies and the disparagement of science.”

“We have to get to work immediately to dig ourselves out of this hole,” Biden added.

Biden is leading the Democratic presidential primary field, with more than 150 delegates more than his opponent, Sen. Bernie Sanders Bernie SandersKenosha will be a good bellwether in 2020 Biden's fiscal program: What is the likely market impact? McConnell accuses Democrats of sowing division by 'downplaying progress' on election security MORE (I-Vt.).

Four more states, Arizona, Florida, Illinois and Ohio, will hold primary races Tuesday.

Biden and Sanders will face off in a debate Sunday night.

The debate was moved to a Washington D.C studio, from Phoenix, and there will be no live studio audience. The Democratic National Committee said the change was made out of caution amid the pandemic.