“So many people are being put out of work through no fault of their own. They don’t know what their future is going to be like, how are they going to pay the bills,” Schumer added.

“Well, we come to their rescue.”

The Senate and House of Representatives still need to pass the legislation before sending it to President Donald Trump for his signature.

McConnell said the Senate will vote on the measure later Wednesday.

The stimulus bill – the largest economic rescue measure in history – comes with a price tag equivalent to 9 per cent of the nation’s gross domestic product and is meant to provide direct financial aid to help individuals, hospitals and businesses.

The deal aims to buttress the teetering economy by giving roughly US$2 trillion to health facilities, businesses and ordinary Americans buckling under the strain of the coronavirus pandemic.

The measure will put cash directly into the hands of Americans hard hit by the crisis, provides grants to small businesses and hundreds of billions of dollars in loans for larger corporations including airlines, and expands unemployment benefits.

It will also inject some US$130 billion into what Schumer calls “a Marshall Plan for hospitals” and health care infrastructure, referring to the huge American aid programme to rebuild Europe after World War II.

US triggers wartime provision as WHO warns country could become epicentre

With viral outbreaks spreading coast to coast, hospitals have been in dire need of equipment like protective gear, intensive care beds and ventilators.

US stocks had already surged Tuesday on expectations of an agreement.

On Wednesday, Tokyo’s Nikkei closed up eight per cent after the stimulus deal was reached. Oil prices rallied in Asia.

McConnell and Schumer negotiated the deal with Treasury Secretary Steven Mnuchin and other White House officials amid days of bitter partisan infighting over what to put into the final package.

Mnuchin had shuttled between the Capitol offices of the Senate’s leaders as they and staffers hammered out the language of the bill.

The agreement followed multiple failed attempts to advance a Republican-led proposal, and pressure had soared to swiftly reach a compromise that provides relief for hundreds of millions of Americans.

President Donald Trump called for an immediate resolution to the stalemate.

Trump wants US ‘opened up’ by Easter, ignoring experts’ warnings of health risks

“Congress must approve the deal, without all of the nonsense, today,” he said Tuesday on Twitter.

“The longer it takes, the harder it will be to start up our economy. Our workers will be hurt!”

Democrats rejected the original package, arguing it put corporations ahead of workers, including health professionals on the front lines of the battle against a pandemic that has infected 55,000 and killed more than 700 in the US alone.

As the hours ticked away Tuesday, several lawmakers voiced their anxiety.

“Pass the damn bill. Stop negotiating. Enough is enough,” a visibly angry Republican Senator Lindsey Graham said on the floor, after accusing Democrats of “nickeling and diming at a time people are dying.”

Any relief package that passes the Senate will need to clear the Democratic-led House too before going to Trump.

Speaker Nancy Pelosi unveiled a more generous, roughly US$2.5 trillion counterproposal that included ambitious elements like guaranteed paid and family medical leave, student loan forgiveness and oversight of the US$500 billion earmarked for corporations.

But she signalled the House may simply take up the Senate bill and try to pass it.

“Much of what we have in our bill is reflected in this supposed agreement,” Pelosi said.

According to Schumer, the compromise legislation includes an oversight mechanism for the company loans, and expanded unemployment provisions for workers laid off or sickened during the pandemic.

“Every American worker who is laid off will have their salary remunerated by the federal government, Schumer said.

The World Health Organisation said the US has the potential to become the new epicentre of the global pandemic as the number of known infections soars.

The proposal is the third – and biggest – plan by Congress to confront the coronavirus crisis as the disease spreads.

An initial US$8 billion plan passed by Congress March 5 is funding emergency health care needs stemming from the coronavirus, and a second plan enacted last week will provide many Americans with paid sick leave, food assistance and free coronavirus testing. It also will send tens of billions in fresh aid to states.

Additional reporting by Bloomberg and Tribune News Service