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A Project of The Annenberg Public Policy Center

Politicians Say Glyphosate Weedkiller Causes Cancer But Evidence Not Clear-Cut

Politicians Say Glyphosate Weedkiller Causes Cancer But Evidence Not Clear-Cut

Following an executive order from the Trump administration that promotes production of glyphosate, some Democrats have claimed that the herbicide causes cancer. The science, however, is nuanced. While there is some evidence linking glyphosate to cancers in lab animals or to the blood cancer non-Hodgkin lymphoma in agricultural workers, the findings have been inconsistent.

FactChecking Trump’s Prime-Time Address on Iran

FactChecking Trump’s Prime-Time Address on Iran

A month after the U.S. and Israel launched airstrikes on Iran, President Donald Trump addressed the nation in a prime-time speech on April 1, saying the military operation was “getting very close” to completing its mission. Trump repeated some false and questionable claims we’ve written about before.

Flaws in Government Tool to ID Noncitizen Voters

Flaws in Government Tool to ID Noncitizen Voters

Republican Sen. Mike Lee said that he believes there are “at least tens of thousands, probably hundreds of thousands” of noncitizens illegally registered to vote in the U.S., adding that a federal tool used in nearly two dozen states would help identify the number. But the tool has wrongly flagged many as being noncitizens, and there’s no evidence of widespread noncitizen voting. 

Q&A on the SAVE America Act

Q&A on the SAVE America Act

On March 17, the Senate began debate on the SAVE America Act, a Republican-backed voter identification and registration bill that passed the House last month. Here, we answer several questions about the legislation, many of them asked by our readers.

Without Providing Evidence, Trump Pins School Bombing on Iran

Without Providing Evidence, Trump Pins School Bombing on Iran

Multiple news outlets have reported that video, satellite images and expert analysis indicate that the United States was likely responsible for the Feb. 28 bombing of an Iranian school for young girls, contradicting President Donald Trump’s unsupported claim that the deadly strike “was done by Iran.”

Assessing Trump’s Claims on Iran’s Nuclear and Missile Capabilities

Assessing Trump’s Claims on Iran’s Nuclear and Missile Capabilities

In discussing his reasoning for launching U.S. airstrikes on Iran, President Donald Trump said, “An Iranian regime armed with long-range missiles and nuclear weapons would be a dire threat to every American.” But arms control experts have disputed his claim that Iran “soon” could have missiles capable of reaching the U.S., and they say there’s a lack of evidence that the country “attempted to rebuild” nuclear enrichment facilities damaged by U.S. strikes last year.

Legality of Latest Iran Attack in Question

Legality of Latest Iran Attack in Question

Many Democrats have claimed that President Donald Trump didn’t have the legal authority to unilaterally order the Feb. 28 joint military airstrikes with Israel that resulted in the death of the supreme leader of Iran, Ayatollah Ali Khamenei. We’ll review what experts already told us in similar past cases.

FactChecking Trump’s State of the Union Address

FactChecking Trump’s State of the Union Address

In the first State of the Union address of his second term, President Donald Trump proclaimed that “our nation is back, bigger, better, richer and stronger than ever before.” But our review of his speech found that he distorted a number of facts about the state of the economy, health care, immigration and other topics.

A Pre-SOTU Guide to Trump’s Economic Claims

A Pre-SOTU Guide to Trump’s Economic Claims

In recent weeks, President Donald Trump has made a series of claims about the economy, a topic that should feature prominently in his State of the Union address to Congress on Feb. 24.