共和国总统乔·拜登似乎与他在大流行病斗争中的首席科学家安东尼·福奇博士意见不一唐纳德·特朗普我应该敦促他的支持者接种疫苗，因为一项民意调查显示，他们是最有可能不接种疫苗的美国人。

“特朗普总统应该帮助在怀疑论者中推广疫苗吗，先生?尤其是那些说他们不愿意的共和党人...一名白宫记者在周一的一次活动结束时问拜登。

“我从像你这样严肃的记者那里听到很多这样的报道。我和我的团队讨论了这个问题，他们说特朗普对MAGA的人说的最有影响的话，是当地医生、当地传教士和社区当地人民说的话，”他回答说。“因此，我敦促所有当地的(医生)和牧师们谈论为什么接种疫苗很重要，甚至在那之后，直到每个人实际上都接种了疫苗，才能戴上这个口罩。”

乔纳森·恩斯特/路透社

国家过敏和传染病研究所所长安东尼·福奇博士对记者说

一天前，福奇说，他希望特朗普利用他对支持者的影响力，鼓励他们接种疫苗，他说，这将是一个“游戏规则的改变”福克斯周日新闻。

“这似乎是一个内在的矛盾，事实上你有一个在他总统任期内开始的项目，而他没有告诉人们接种疫苗。我希望他会。他对共和党人有着难以置信的影响，”福奇说。"如果他真的改变了游戏规则，那就太好了。"

尽管30%的美国人表示，如果疫苗可供他们使用，他们将不会接种，但根据最近的一项研究，白人男性的比例要高得多，那些投票给特朗普的人最有可能不会接种疫苗NPR/公共广播公司新闻一小时/马里斯特民意调查。49%的白人男性表示，如果可以接种疫苗，他们不会接种，2020年支持特朗普的人中，47%的人表示他们会接种疫苗。

特朗普和前第一夫人梅兰妮·特朗普都收到了他们的疫苗在他的任期结束之前，但他当时没有发表公开声明，只有在他离任后，报道才浮出水面。特朗普的发言人周一没有回应美国广播公司新闻的置评请求。

当被问及拜登白宫正在做些什么来接触美国人时，普萨基周一强调，他的目标是为所有美国人接种疫苗，“不仅仅是那些投票给他的人”。Psaki大力宣传政府与当地医疗保健提供商合作的努力，她甚至在周二预演了Fauci将会见福音派领导人的活动。

帕特里克·法伦/法新社通过盖蒂图像

一名护士在天主教学校教育诊所注射一剂现代新冠肺炎疫苗

“我们已经采取的步骤之一，我们可以在任何党派政治之外有效地做到这一点，就是确保有可信的、感兴趣的地方、社区卫生中心、药店，任何政治信仰的人都可以获得疫苗，他们不需要戴乔·拜登贴纸就可以做到这一点，”普萨基说。

但在周五的简报会上，普萨基指出，鉴于党派分歧，拜登的信息存在局限性。

“我们认识到，作为一个有民主党总统的民主党政府，我们可能不是与前总统的铁杆支持者沟通的最有效的信使，我们必须对此保持清醒的头脑，”普萨基说。

Psaki还在上周发布的公益广告中发表讲话，鼓励美国人接种疫苗，广告中包括每一位在世的总统，包括前共和党总统乔治·布什。

广告背后的广告委员会告诉美国广播公司新闻，这些广告是在拜登1月份的就职典礼上拍摄的，特朗普没有出席。

“其他活着的前总统...参加了公共活动，他们不需要一个雕刻的邀请这样做。所以，他可能会决定他应该这么做。如果是这样，太好了，”普萨基说。“但有许多不同的方式来参与、接触，以确保一系列政治支持和支持的人知道疫苗是安全有效的。”

德鲁·安格雷尔/盖蒂影像公司

白宫新闻秘书珍·普萨基在白宫的每日新闻发布会上说

由于如此大比例的美国人没有接种疫苗，很难达到可能结束这一流行病的免疫接种门槛，专家估计，这一门槛在美国人口的70%至90%之间。

然而，福奇在周一的新闻发布会上说，群体免疫是一个粗略的估计，可能是不正确的，所以现在不应该是优先考虑的。

“我们不应该如此关注这种难以捉摸的群体免疫力，”福奇说。“我们应该关心的是尽快让尽可能多的人接种疫苗。”

Biden, Fauci appear at odds over calling on Trump to urge supporters get vaccinated

PresidentJoe Bidenappeared to be at odds with his top scientist in the pandemic fight, Dr. Anthony Fauci, about whether former presidentDonald Trumpshould urge his supporters to get vaccinated, given a poll that shows they are the Americans most likely not to get the shots.

"Should President Trump help promote the vaccine amongst skeptics, sir? Especially those Republicans who say that they’re not willing ... ," a reporter at the White House asked Biden at the end of an event Monday.

"I'm hearing a lot of reports from serious reporters like you saying that. I discussed it with my team, and they say the thing that has more impact than anything Trump would say to the MAGA folks, is what the local doctors, what the local preachers, what the local people in the community say," he responded. "So, I urge all local [doctors] and ministers and priests to talk about why it's important to get that vaccine, and even after that, until everyone is, in fact, vaccinated to wear this mask."

A day earlier, Fauci said he wishes Trump would use his influence over supporters to encourage them to get the vaccine, saying it would "be a game changer" during an appearance onFox News Sunday.

"It seems like an intrinsic contradiction, the fact that you had a program that was started during his presidency and he's not out telling people to get vaccinated. I wish he would. He has such an incredible influence over people in the Republican Party,” Fauci said. "It would really be a game changer if he did."

While 30% of Americans said they would not get the vaccine if it became available to them, the percentage was far greater among white men, and those who voted for Trump are the most likely not to get the vaccine, according to a recentNPR/PBS NewsHour/Marist poll. Forty-nine percent of white men said they would not get vaccinated if it was available to them, and 47% of those who supported Trump in 2020 reported they would get the vaccine.

Trump and former first lady Melania Trump both received theirvaccinesbefore his term ended, but he made no public statement at the time, reports surfacing only after he left office. A Trump spokesperson did not respond to an ABC News request for comment Monday.

When pressed about what the Biden White House was doing to reach out to Americans across the aisle, Psaki on Monday stressed that his goal is to vaccinate all Americans "not just those who voted for him." Psaki touted the efforts by the administration to partner with local health care providers and she even previewed an event Tuesday in which Fauci will meet with evangelical leaders.

"One of the steps we've taken, and we can effectively do outside of any partisan politics is ensure that there are locations with trusted, interested locations, community health centers, pharmacies, where anybody of any political persuasion can get the vaccine, and they don't need to wear a Joe Biden sticker in order to do that," Psaki said.

But at a briefing on Friday, Psaki noted the limitations of Biden's messaging given the partisan divide.

“We recognize as a Democratic administration with a Democratic president that we may not be the most effective messenger to communicate with hard core supporters of the former president, and we have to be clear eyed about that," Psaki said.

Psaki also addressed ads released last week featured every living president, including former Republican President George W. Bush, in public service announcements encouraging Americans to get vaccinated.

The Ad Council, which was behind the ads, told ABC News that the ads were filmed at the inauguration of Biden in January, which Trump did not attend.

"Every other living former president ... has participated in public campaigns, they did not need an engraved invitation to do so. So, he may decide he should do that. If so, great," Psaki said. "But there are a lot of different ways to engage, to reach out, to ensure that people of a range of political support and backing know the vaccine is safe and effective."

With such a large percentage of Americans not taking the vaccine, it will be difficult to reach the threshold of immunizations that could end the pandemic, which experts estimate to be somewhere between 70% and 90% of the U.S. population.

Fauci, though, said during a press briefing Monday that herd immunity is a rough estimate and that it may not be right, so it should not be the priority for now.

"We should not get so fixated on this elusive number of herd immunity," Fauci said. "We should just be concerned about getting as many people vaccinated as quickly as we possibly can."