President Trump and special counsel Robert Mueller. Photos: Pool/Getty Images; Alex Wong/Getty Images

56% of Americans trust special counsel Robert Mueller's version of the facts regarding his investigation, compared to 33% who prefer President Trump's, according to a Washington Post-Schar School poll released Tuesday.

By the numbers: A little more than 40% of Americans believe that Mueller has so far proven that the Trump campaign lied about their contact with Russians — and those results skew predictably along partisan lines. But more than 60% of Americans believe that Trump should face impeachment charges should Mueller conclude that Trump personally obstructed justice or directed his campaign subordinates to collude with Russia during the 2016 presidential election.

Go deeper: Everyone caught up in the Trump investigations

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3 mins ago - World

Trump announces new Iran sanctions in effort to maintain international arms embargo

Photo: Anna Moneymaker-Pool/Getty Images

President Trump signed an executive order on Monday that would impose sanctions on any person or entity that contributes to the supply, sale, or transfer of conventional arms to or from Iran or is engaged in providing training and financial support related to those weapons.

Why it matters: The executive order is the first step by the Trump administration to put teeth into its claim that international sanctions on Iran were restored over the weekend, one month after the U.S. initiated the "snapback" process under a United Nations Security Council resolution.

Exclusive: Conservative group launches $2M Supreme Court ad

Screengrab of ad, courtesy of Judicial Crisis Network.

The Judicial Crisis Network is launching a $2.2 million ad campaign to put pressure on vulnerable Senate Republicans in battleground states to support a quick confirmation when President Trump announces his Supreme Court nominee.

The big picture: "Follow Precedent," previewed by Axios, is one of the first national and cable television ads to run following Justice Ruth Bader Ginsberg's death Friday.

Updated 18 mins ago - Politics & Policy

CDC says it mistakenly published guidance about COVID-19 spreading through air

CDC Director Robert Redfield. Photo: Anna Moneymaker/Pool/Getty Images

The CDC has removed new guidance that acknowledged airborne transmission of the coronavirus, posting in a note on its website that the guidance was only a draft and had been published in error.

Why it matters: The initial update — which was little noticed until a CNN story was published Sunday — had come months after scientists pushed for the agency to acknowledge the disease was transmissible through the air. The CDC previously said that close person-to-person contact was the bigger concern, and the language has been changed back to erase the warning about airborne transmission.