Senate Majority Leader Mitch McConnell Addison (Mitch) Mitchell McConnellOcasio-Cortez to voters: Tell McConnell 'he is playing with fire' with Ginsburg's seat McConnell locks down key GOP votes in Supreme Court fight Video shows NYC subway station renamed after Ruth Bader Ginsburg MORE (R-Ky.) tore into Democrats Monday morning for their latest stimulus demands as more than three days of negotiations have failed to yield a deal.

McConnell ticked off the items on what he called the “Democratic wish list,” citing tax deductions to solar and wind energy companies, workplace provisions sought by organized labor and new emissions standards for the airlines.

“Are you kidding me?” McConnell asked on the floor.

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“This is the moment to debate new regulations that have nothing whatsoever to do with this crisis? That’s what they’re up to over there,” he said, motioning across the aisle.

Senate Majority Leader Mitch McConnell slams Democrats over delay in coronavirus relief bill: “Are you kidding me? This is the moment to debate new regulations that have nothing whatsoever to do with this crisis? That’s what they’re up to over there.” https://t.co/6rWzHE7qur pic.twitter.com/zDOA1wjBc8 — ABC News Politics (@ABCPolitics) March 23, 2020

“Democrats won’t let us fund hospitals or save small businesses unless they get to dust off the 'Green New Deal,'” he said, referring to a sweeping liberal proposal to address global climate change.

The Senate was in all weekend working on a huge stimulus bill to respond to the hit the economy is taking from the coronavirus pandemic. The weekend talks did not result in a deal, and McConnell has sought to use falling markets on Monday morning to raise pressure on the Democrats.

McConnell warned Democrats are playing with fire by dragging out the talks, pointing to the morning’s drop in the stock markets, which have wiped out gains made since President Trump Donald John TrumpBiden leads Trump by 36 points nationally among Latinos: poll Trump dismisses climate change role in fires, says Newsom needs to manage forest better Jimmy Kimmel hits Trump for rallies while hosting Emmy Awards MORE won the 2016 election.

“I hear the markets are not doing well today. They’d like to ask the question of us, why not move? Why are Democrats filibustering the bipartisan bill they helped write?” the GOP leader said.

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McConnell scheduled another vote at 1:30 p.m. Monday to proceed to the stimulus package.

Speaking right after McConnell, Senate Minority Leader Charles Schumer Chuck SchumerRepublican senator says plans to confirm justice before election 'completely consistent with the precedent' Video of Lindsey Graham arguing against nominating a Supreme Court justice in an election year goes viral Graham signals support for confirming a Supreme Court nominee this year MORE (D-N.Y.) accused the GOP leader of giving a partisan screed and predicted a deal could yet be reached on Monday.

Schumer, who resumed meetings with Treasury Secretary Steven Mnuchin Steven Terner MnuchinLawmakers fear voter backlash over failure to reach COVID-19 relief deal United Airlines, unions call for six-month extension of government aid House Democrats plan to unveil bill next week to avert shutdown MORE at 9 a.m., said the talks are “very close” to a deal.

McConnell's criticism has put Democrats on the defensive.

Sen. Chris Murphy Christopher (Chris) Scott MurphyDemocratic senator calls for 'more flexible' medical supply chain to counter pandemics The Hill's 12:30 Report - Presented by Facebook - Don't expect a government check anytime soon GOP chairman to release interim report on Biden probe 'in about a week' MORE (D-Conn.) tweeted Monday morning that Democrats are only trying to take a few extra hours to improve the package.

"This is a $2T ($2 trillion!) and the draft that Republicans wrote doesn't fix the problem. Spending 18 extra hours to get $2T right is worth it," he tweeted.

McConnell slammed Democrats for blocking funding for hospitals and medical supplies, which was included in a $1.8 trillion bill that failed to advance on a 47-47 procedural vote Sunday.

“I’d like to see Senate Democrats tell small business employees in their states who are literally being laid off every day that they’re filibustering relief that will keep people on the payroll because Democrats’ special interest friends want to squeeze employers while they’re vulnerable,” he said, referring to labor and environmental activists.

Schumer hurried to the floor to respond to the attack.

“I’m in my office with the president’s secretary of the Treasury, the president’s liaison, getting things done,” he said, criticizing McConnell for setting up procedural votes that he said were distracting from the talks.

After three days of intense negotiations without an agreement, tempers have started to fray.

“The country is burning, and your side wants to play political games. It’s time to get this done,” fumed Sen. John Thune John Randolph ThuneWhat Senate Republicans have said about election-year Supreme Court vacancies The Hill's 12:30 Report - Presented by Facebook - Don't expect a government check anytime soon The Hill's Morning Report - Sponsored by The Air Line Pilots Association - Trump contradicts CDC director on vaccine, masks MORE (R-S.D.), a normally affable lawmaker.

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When Schumer objected to Sen. Susan Collins Susan Margaret CollinsMcConnell locks down key GOP votes in Supreme Court fight Most Americans think winner of election should pick next Supreme Court justice: poll Murkowski: Supreme Court nominee should not be taken up before election MORE’s (R) request to speak after his sharp exchange with McConnell, the Maine senator exploded with frustration.

“Unbelievable. The Democratic leader objected to my even being able to speak this morning. Is that what we’ve come to?” she said.

Updated at 1:06 p.m.