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(CNN) After 50,000 Covid-19 deaths, enormous job losses and and more than a month under lockdown, stunned Americans are looking for signs of hope. And President Donald Trump has been trying to provide them.

But Trump's evening briefings at the White House have instead produced a string of uncomfortable collisions between politics and science -- not least his suggestion Thursday that injecting disinfectant into the body could potentially kill the virus.

In another of his remarkable comments, the President had earlier touted the benefits of an unproven drug in fighting Covid-19, a fact he downplays now that research has suggested it may not work. The nation's top infectious disease expert, Dr. Anthony Fauci, had urged caution on the drug, hydroxychloroquine, and another prominent government scientist alleged this week that he was reassigned after refusing to join in promoting its use.

In New York magazine, warned that when politics steers science, you can wind up with the grotesque example of the Soviet Union's Trofim Lysenko under the dictatorship of Joseph Stalin. Real scientists were silenced as the regime empowered Lysenko to dispute the proven laws of genetics, Chait wrote earlier this month. Lysenko even claimed, according to the Encyclopedia Britannica , "that wheat plants raised in the appropriate environment produce seeds of rye, which is equivalent to saying that dogs living in the wild give birth to foxes."

"Lysenko genetics" has long been a laughingstock. Science proceeds on its own terms and timetable; it can't be counted on to provide the solutions public officials desperately want, when they want them.

Frida Ghitis. "Trump and everyone else who magnifies the President's most "For weeks, Trump and Fox News hosts and guests incessantly repeated unproven claims about hydroxychloroquine," wrote. "Trump and everyone else who magnifies the President's most irresponsible exhortations bears guilt in this disaster ."

At Thursday's briefing, Trump invited a government official to talk about research indicating the virus could be killed by sunlight and humidity, in an apparent effort to vindicate the President's controversial early prediction that the virus might disappear during the summer, which the National Academy of Sciences has questioned. And Trump suggested patients could be treated by the internal use of UV light and disinfectants, an idea that doctors immediately dismissed as ridiculous and dangerous. (On Friday he said his suggestion had been a "sarcastic question.")

Michael D'Antonio's view that "in this time of pandemic, when unimaginable suffering has befallen our nation, he is essentially channeling not Abraham Lincoln, or Franklin D. Roosevelt, but the long-dead Johnny Carson ... Challenged by reporters, Trump replied, "I'm just here to present talent. I'm here to present ideas ... If heat is good, if light is good, that's a great thing as far as I'm concerned." His remarks reinforced's view that "in this time of pandemic, when unimaginable suffering has befallen our nation, he is essentially channeling not Abraham Lincoln, or Franklin D. Roosevelt, but the long-dead Johnny Carson ... Trump appears to be relying on his showman's instinct and on what he remembers of the TV star who was once his idol," he wrote.

Distrust for science

"Trump didn't invent any of this," Jill Filipovic observed. "A Republican Party that sowed distrust in science because the reality of climate change was financially inconvenient for fossil fuel companies, and determined that conservative, patriarchal Christian morality should take precedence over public health in how we teach our kids about sex and the human body, is exactly what brought us Trump in the first place," Filipovic wrote. observed. "A Republican Party that sowed distrust in science because the reality of climate change was financially inconvenient for fossil fuel companies, and determined that conservative, patriarchal Christian morality should take precedence over public health in how we teach our kids about sex and the human body, is exactly what brought us Trump in the first place," Filipovic wrote.

Garry Kasparov, "Trump -- facing an unprecedented crisis in the form of a deadly pandemic -- has shown himself to be a dangerous pathogen. Trump has spent his time in office "More than three years into his presidency," argued, "Trump -- facing an unprecedented crisis in the form of a deadly pandemic -- has shown himself to be a dangerous pathogen. Trump has spent his time in office weakening the nation's systemic immune system -- or institutions that hold him in check -- and setting the US up for a disaster when those institutions are needed more than ever."

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Marc Thiessen in The Washington Post. "Trump heeded the advice of our public health experts every step of the way. When Fauci and Deborah Birx recommended that he implement population mitigation measures, he did so -- shutting down a booming US economy to protect public health." Thiessen asked, "Why was everyone so slow to see the coming danger? Because at a time when China's government should have been alerting us to prepare for an unprecedented contagion, Chinese officials were Faulting Trump for the pandemic's deadly sweep across the US is wrong, wrotein The Washington Post. "Trump heeded the advice of our public health experts every step of the way. When Fauci and Deborah Birx recommended that he implement population mitigation measures, he did so -- shutting down a booming US economy to protect public health." Thiessen asked, "Why was everyone so slow to see the coming danger? Because at a time when China's government should have been alerting us to prepare for an unprecedented contagion, Chinese officials were spreading disinformation that kept the United States and the world in the dark.

Chris Patten wrote that despite their failures, Trump's bashing of China and the World Health Organization is unproductive right now. "To recover from these horrors and their aftermath, we must try to persuade China to work with us, and we must For Project Syndicate, the last British governor of Hong Kong,wrote that despite their failures, Trump's bashing of China and the World Health Organization is unproductive right now. "To recover from these horrors and their aftermath, we must try to persuade China to work with us, and we must strengthen the institutions that are essential for effective international cooperation ."

It could get worse

Trump's Thursday briefing also featured an appearance by Centers for Disease Control and Prevention Director Dr. Robert Redfield attempting a walk-back of his comments in the Washington Post that a fall wave of the disease could be even more difficult because it would coincide with a seasonal flu outbreak. The move backfired, since Redfield acknowledged he was quoted accurately.

The CDC director is not the only one who fears the future spread of Covid-19 will be even worse. In a sobering interview with Peter Bergen, infectious disease expert Michael Osterholm said the ultimate death toll in the US could be in the range of 800,000, 16 times what it was as of Friday.

"This first wave of illness is, in fact, just the beginning of what could very easily be 16 to 18 months of substantial activity of this virus around the world , coming and going, wave after wave," Osterholm said. The US desperately needs a long-term strategy to fight the virus, a middle way where "we open our economy and everyday life in a way that is capable of rapidly detecting the emergence of new waves of infection. Then we do whatever we can again with physical distancing to limit the new infection's spread."

Reopening

Trump has encouraged governors and protesters to push for the rapid reopening of America even when such moves violate the guidelines laid down by his own scientific advisers. And Georgia's Gov. Brian Kemp proved eager to respond, ordering that many businesses could reopen Friday. Trump at first welcomed the move, but as criticism grew, he said he was "not happy with Brian Kemp," particularly for allowing spas, nail salons and tattoo parlors to be among those reopening.

John Avlon pointed out. " In 1918, a premature reopening by the city of Denver produced a severe outbreak of the deadly influenza,pointed out. " Kemp seems more intent on playing to the base than listening to scientists ," he wrote. "He was late to the lockdown and now wants to open up early. But then again, he's the same governor -- of the CDC's home state -- who said it was news to him that asymptomatic people could spread the disease, two months after it was common knowledge."

Dr. Eric Schulze and Madhu Vijayan. "Rather than continuing to use a sledgehammer plan to defeat this virus, Reopening requires a careful look at the underlying health conditions that make people particularly vulnerable to the disease, wroteand. "Rather than continuing to use a sledgehammer plan to defeat this virus, there may be wisdom in using a scalpel : a targeted approach that shelters the vulnerable and clearly delineates who is not at risk. This could create a path for reentry into normal life in a carefully structured manner."

Surviving

Van Jones, noting that for decades he used "social justice activism as an excuse to neglect my health ... I ate crappy food, rarely exercised, guzzled diet soda and rarely slept." Now he struggles with high cholesterol, pre-diabetes and hypertension. "I am someone whom Covid-19 could easily kill," wrote, noting that for decades he used "social justice activism as an excuse to neglect my health ... I ate crappy food, rarely exercised, guzzled diet soda and rarely slept." Now he struggles with high cholesterol, pre-diabetes and hypertension.

"This virus is wiping out black people like me in hugely disproportionate numbers.

"If the African American community is going to beat this virus -- and create a pandemic-resistant black community -- we are going to have to make big changes in both our public systems and our personal lives ... Ensuring the health of African Americans means addressing the lack of access (food deserts), racial discrimination in health care and the epidemic of over-incarceration," along with lifestyle changes, Jones wrote.

Kent Sepkowitz. "Strangest and most miraculous of all, convalescent plasma treatment is cheap -- no drug company, villainous hedge-fund mover and shaker or insurance company is getting a cut. Rather, plasma uses One of the most promising treatments for Covid-19 appears to be the use of blood plasma from recovered patients, wrote Dr.. "Strangest and most miraculous of all, convalescent plasma treatment is cheap -- no drug company, villainous hedge-fund mover and shaker or insurance company is getting a cut. Rather, plasma uses altruistic donors, an existing network of blood banks and routine hospital processes for collection and delivery." (For a look at its use in one case, read Thomas Lake's column, "The Distance."

For more on Covid-19 and its impact:

David Perry: Social distancing is an act of patriotic love

Andrew Y. Chang and Michele Barry: Covid's medical devastation will be felt by millions who never contract the disease and

Veepstakes

A presidential campaign like none other in US history continued to play out, with Trump using the White House briefings to sound his campaign themes and Joe Biden trying to get his message out while raising campaign funds.

"With less than 200 days until Election Day," wrote Arick Wierson and Bradley Honan, "the Trump campaign has nearly a quarter of a billion dollars on hand to spend raining down negative Biden television and digital ads on key swing states."

Ads from Trump and his supporters "may not only take the lies and misinformation to a new level; they could use the latest in artificial intelligence to manipulate voice and video to make their points ."

Julian Zelizer: Sen. Elizabeth Warren. " The other big question for Democrats is who Biden will pick as his running mate. He's promised that he will choose a woman to run for vice president. There's one outstanding choice, according to: Sen. Elizabeth Warren. " She would instantly energize Biden's campaign and expand its capacity to reach a broad electoral base," Zelizer wrote.

David A. Andelman argued for Michigan Gov. Gretchen Whitmer: " argued for Michigan Gov. Gretchen Whitmer: " Whitmer brings her skills as a governor and public official who has unfailingly seen from the get-go what her state needs in this, its most critical hour, and with laser-like precision has gone after it. With her leadership skills, she has also shown herself prepared to do so for the nation as well."

Ben Jealous has known Stacey Abrams for nearly 30 years and is convinced she's right for the veep role. She "brings something to politics that is often lacking -- Former NAACP presidenthas known Stacey Abrams for nearly 30 years and is convinced she's right for the veep role. She "brings something to politics that is often lacking -- creative approaches to complex challenges, and given the current pandemic crisis we are facing, we need her creative thinking, now more than ever."

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Mario Ramirez and Andrew Buher: To help schools open safely this fall, governors must act now and

AND...

Life, with hyenas

The nearest grocery store is two hours away. Wildlife photographer Kim Wolhuter and his wife and daughter know about isolation. They live with little outside human interaction on a huge wildlife reserve in Zimbabwe.

"What we lack in material belongings, bank balances, convenience and community," he said in an interview with CNN's Inside Africa, "we make up for with a deep and real connection to nature, a focus on family time (a lot of it) and a sense of peace that I think the world is missing. We live simply but fully."

Part of that lifestyle is a closeness to nature and the local population of wild hyenas. Wolhuter said he has a problem with the way "The Lion King ... totally vilifies hyenas." He's working on a project "to change the way we see hyenas so we can protect these incredible creatures and their habitat."

The family shares some rituals "that make the experience of isolation particularly enjoyable. One of them is sleeping out under the night sky as much as possible -- but especially when the moon is full. We wake up full of dew, to see the setting of the moon and rising of the sun."