In the Capitol, the Delta Variant Spreads Worry and Partisanship

WASHINGTON — Breakthrough coronavirus cases have emerged in multiple offices in Congress, including the speaker’s. The line for in-house testing snakes through a long corridor and into a visitors’ center atrium. The Capitol’s doctor has warned of the possible return of a mask mandate.

The Delta variant has reached Capitol Hill, but a common enemy has only made recriminations and anger worse between the two political parties. Republicans, caught between a political base that is often resistant to vaccination and an imperative to save the lives of their voters, point their fingers at Democrats and blame them, without evidence, for covering up the virus’s origins.

Democrats fault Republicans who have done little to push back against vaccine skeptics in their ranks, and even now are soft-pedaling their calls for people to take the shot.

“We’ve got people here who’ve refused to get vaccinated and are actually discouraging others to get vaccinated,” said Representative Jim McGovern of Massachusetts. “The Republican Party no longer lives in reality. It’s pathetic.”

For much of the vaccinated nation, the coronavirus resurgence is somewhere else. In states like Vermont, Hawaii and Massachusetts, where at least 84 percent of the adults have at one shot or two, surges in Alabama, Florida, Missouri and Arkansas are far, far away.

But the Capitol is one of the few places in America where red and blue mingle almost daily — and resentment is high.

“Congress is like a nationwide convention every single day,” said Representative Jamie Raskin, a Democrat who has begun wearing a mask again, though he is fully vaccinated and 76.5 percent of adults in his state of Maryland have received at least one shot. “There are people who have come from every corner, hamlet and precinct of the country. It’s a petri dish for the development of political ideas, but also plagues.”

Republicans point out that the most recent high-profile carriers of the current plague were Democrats, Texas legislators who fled Austin to stop passage of a measure restricting voting. Six of them — all of whom said they were vaccinated — then tested positive, and are suspected of infecting a senior aide to Speaker Nancy Pelosi. The aide, also vaccinated, is mildly symptomatic.

“I think that you as the press have a responsibility to ask questions of the Democrats as well,” Representative Ronny Jackson, Republican of Texas, snapped on Thursday when he and other Republican doctors were asked how many in their conference had been vaccinated. “How many of the Democrats are willing to say whether or not they’ve been vaccinated? What about the Texas delegation from the Texas House, including the six that tested positive?”

After a reporter pointed out that 100 percent of House Democrats and all of the legislators had said they were vaccinated, Mr. Jackson, a former White House physician known for his glowing reviews of President Donald J. Trump’s health, accused them of lying.

It is clear in the Capitol that the resurgence of the coronavirus — which is once again filling intensive care units around the country — is not pulling the nation together.

“Some of my frustration comes from talking to former colleagues still working in the I.C.U.,” said Representative Ami Bera, Democrat of California and a doctor. “The first year, they didn’t have much to treat patients. They were intubating and just trying to keep them alive. Now for every patient they’re putting on a ventilator, this was absolutely preventable. Every one of them is unvaccinated.”

To be fair, the Texas legislators who made a show of defiance, then brought the virus, spread fears in both parties. Representative Kim Schrier, Democrat of Washington and a pediatrician, said those six breakthrough cases were a wake-up call in the Capitol community.

On the House floor, at least among Democrats, masks are going back on. Lawmakers are sending staff members for testing. Ms. Pelosi and some senators have told aides to work from home — just weeks after many of them returned to Capitol Hill.

And as lawmakers and aides look toward this fall, when school resumes before children under 12 are expected to have access to vaccines, their worries only worsen.

“If you’re in an area with a lot of unvaccinated people and you have unvaccinated kids, I would recommend you put your masks on again,” Dr. Schrier said. “If I had children under 12, I would be taking very big precautions right now.”

It is still unclear how many Republicans in the House and Senate are vaccinated, as many of them have refused to say one way or the other. Both Senators Rand Paul of Kentucky and Ron Johnson of Wisconsin — who has pushed fringe theories about the virus — have said they will not get the shot because they have already had Covid-19. (The Centers for Disease Control and Prevention recommends that people who have had the virus still be inoculated.)

Representative Lauren Boebert, Republican of Colorado, proudly proclaimed this month at the Conservative Political Action Conference in Dallas: “Don’t come knocking on my door with your ‘Fauci ouchie.’ You leave us the hell alone.” She was referring to Dr. Anthony S. Fauci, the director of the National Institute of Allergy and Infectious Diseases, who has become a boogeyman for the right.

Congress’s attending physician, Dr. Brian P. Monahan, indicated that some remained unprotected when he pleaded this week with lawmakers in a memorandum: “The Delta variant is a severe threat. I urge unvaccinated individuals to come for vaccination at any time.”

Leadership aides say the number of unvaccinated lawmakers is slowly dwindling. The No. 2 House Republican leader, Steve Scalise of Louisiana, got his first shot on Sunday, a remarkable delay considering that one House Republican, Ron Wright of Texas, and one Republican member-elect from his home state, Luke Letlow, died of Covid-19.