President Donald Trump has announced a freeze in US funding to the World Health Organisation because he said it had been biased to China.
According to Trump, the WHO prevented transparency over the COVID-19 outbreak when it appeared in China, costing other countries crucial time to prepare, delaying decisions to stop international travel.
"Had the WHO done its job to get medical experts into China to objectively assess the situation on the ground and to call out China's lack of transparency, the outbreak could have been contained at its source with very little death," he said.
"The WHO's attack on travel restrictions put political correctness above life-saving measures."
"We have deep concerns whether America's generosity has been put to the best use possible," he said, adding that Washington would now "discuss what we do with all that money that goes to the WHO."
But UN chief Antonio Guterres fired back, saying now is "not the time to reduce the resources for the operations of the World Health Organization or any other humanitarian organization in the fight against the virus."
"It is my belief that the World Health Organization must be supported, as it is absolutely critical to the world's efforts to win the war against COVID-19," said the secretary general, who has called for international cooperation in the fight against the pandemic.
- Some reopenings 'very soon' -
Facing a tough re-election in November, the Republican president also says he is eager to get the world's biggest economy back on its feet as quickly as possible.
But a threat on Monday to invoke his "total" power to force state governors to follow his directives on reopening prompted an outcry.
"We don't have King Trump, we have President Trump," New York Governor Andrew Cuomo said on CNN.
Equally combative, Trump responded on Twitter by likening skeptical governors to rebellious sailors in the movie "Mutiny on the Bounty."
At his press conference Tuesday, Trump backpedalled, clarifying that governors would take the lead on when and how to ease the restrictions paralyzing the US economy.
"I'm not going to put any pressure on any governor to open," Trump said.
The president indicated that numerous states with less dense populations could open "very, very soon, sooner than the end of the month," while places like New York could take longer.
"We'll open it up in beautiful little pieces," Trump said.
The president had been expected to unveil a new task force on Tuesday for managing the national reopening. That did not happen.
Instead, Trump announced he would be talking to large groups of business leaders, Congress members and all 50 governors in conference calls this week.
"Our country has to get open and it will get open," he said.
- California caution -
For weeks, Trump has veered between supporting a sudden, large-scale reopening and a cautious, case-by-case relaxation of mitigation measures.
In the end, he has bowed -- often reluctantly -- to advice from medical experts who argue that relaxing social distancing and allowing people back to work prematurely would spark a second wave of infections.
Reflecting the sense of instability, economic powerhouses California and New York -- both led by Democrats -- are developing their own reopening plans, insisting that Trump will not set the pace.
California's Governor Gavin Newsom, who has joined forces with Oregon and Washington states to coordinate the transition, said he would not announce any concrete timing for at least another two weeks.
"We can't get ahead of ourselves," he said. "I don't want to make a political decision that puts people's lives at risk and puts the economy at even more risk."
Talks are underway for eventual reopening of California restaurants, schools and businesses but many social distancing procedures are likely to be retained, including wider spacing at meal times and wearing of masks, he said.
"Normal, it will not be," he warned.
- No 'King' Trump -
On Monday, Trump had insisted that he can override state governors to determine the reopening schedule.
"When somebody's the president of the United States, the authority is total," Trump said.
Trump's claim -- disputed by constitutional experts -- took long-running confusion over who is in charge to a new height.
"If he ordered me to reopen in a way that would endanger the public health of the people of my state, I wouldn't do it," Cuomo told CNN.
Trump fired back on Twitter.
"A good old fashioned mutiny every now and then is an exciting and invigorating thing to watch, especially when the mutineers need so much from the Captain," he tweeted.