Dr. Anthony Fauci and Republican Kentucky Sen. Rand Paul engaged in a heated exchange at a Tuesday Senate hearing on COVID-19.

When Paul claimed Fauci was attacking scientists who disagreed with him, Fauci responded, "you keep distorting the truth."

"I brought together a group of people to look at every possibility with an open mind ... you're completely turning it around," Fauci said.

Fauci said the purpose of the committee was to get help to the American public, but he said Paul instead chooses to "keep coming back to personal attacks on me that have absolutely no relevance."

Fauci told the Senate committee on Health, Education, Labor and Pensions that Paul's attacks are "for political reasons" and inspire "the crazies out there."

Fauci referenced the December arrest of a California man who, at a traffic stop, was allegedly found with an AR-15 style rifle, loaded magazines, boxes of ammunition and body armor. Prosecutors said the driver downloaded TikTok videos, compiling a list of people he allegedly wanted to kill, including Fauci and former Presidents Bill Clinton and Barack Obama.

The U.S. daily death average from COVID-19 is steadily rising, with an average of 1,550 new fatalities each day -- up by about 44% since Christmas, according to federal data.

This average is still significantly lower than last winter when the nation peaked at about 3,400 deaths per day.

Indiana now has the nation's highest death rate, followed by Delaware and Wyoming.

Nearly 146,000 Americans with COVID-19 are currently in hospitals -- a pandemic high -- according to new data from the Department of Health and Human Services.

On average, more than 18,500 virus-positive Americans are being admitted to the hospital each day, a figure which has more than doubled over the last month. It's still not clear how many COVID-19-positive people in hospitals were admitted to the hospital for the virus or admitted for other reasons and coincidentally tested positive.

About 30% of hospitals (with available data) are facing critical staffing shortages.

-ABC News' Arielle Mitropoulos

With 48,686 New Yorkers testing positive on Monday, the state saw a case drop for the first time in weeks, Gov. Kathy Hochul announced.

Hochul called this "a glimmer of hope," but warned, "we are not at the end."

While hospitalizations continue to rise, "the rate of increase is slowing, and to us that is very encouraging," the governor said.

-ABC News' Will Gretsky

Chicago residents can head to their local alderman's office to get a free KN95 mask as the city distributes 1.5 million of them on Tuesday, ABC Chicago station WLS reported.

With another 4,793 daily cases, Chicago's test positivity rate stands at 18.9% as of Tuesday, according to city data.

The United Kingdom has launched a new advertising campaign that urges pregnant women who have not yet received a COVID-19 vaccine or booster shot to do so as soon as possible.

Testimonies of pregnant women who have had the shots will be played out in ads across U.K. radio stations and on social media starting Monday. The new campaign urges pregnant women "don't wait to take the vaccine" and highlights the risks of COVID-19 to both mother and baby as well as the benefits of getting vaccinated, according to a press release from the U.K. Department of Health and Social Care.

The press release cited the latest data from the U.K. Health Security Agency that suggests COVID-19 vaccination is safe for pregnant women and provides strong protection against the virus for both mother and baby. The press release also cited data from the U.K. Obstetric Surveillance System that shows more than 96% of pregnant women hospitalized with COVID-19 symptoms between May and October 2021 were unvaccinated, and a third of them required respiratory support. Around one in five women who are hospitalized with COVID-19 need to be delivered preterm to help them recover, and one in five of their babies need care in the neonatal unit.

"Getting a COVID-19 vaccine is one of the most important things a pregnant woman can do this year to keep herself and her baby as safe from this virus as possible," Lucy Chappell, chief scientific adviser to the U.K. Department of Health and Social Care, said in a statement Monday. "We have extensive evidence now to show that the vaccines are safe and that the risks posed by COVID-19 are far greater."