Jon Greenberg is a senior correspondent with PolitiFact. He was part of the PolitiFact team during the 2012 presidential election and was one of the fact-checkers who launched PunditFact in 2013. Prior to that, he was executive editor at New Hampshire Public Radio and a Washington reporter for National Public Radio. He has twice won awards from the Society of Professional Journalists for investigative reporting.

The latest Truth-O-Meter items from Jon Greenberg

Recent stories from Jon Greenberg

In context: Mick Mulvaney on quid pro quo

White House acting chief of staff Mick Mulvaney said Ukraine aid hinged, in part, on seeking the DNC server. Then he said he didn't say that. Read what he said in his own words.

What’s the manufacturing job killer, automation or trade?

Elizabeth Warren and Andrew Yang sparred over which does more damage to jobs –– trade or technology? The latest studies point to trade, but the real answer is the two factors are hard to separate, and for workers, caught short the real, real answer is having options to adapt to new demands.

Fact-checking the Ohio Democratic presidential debate

Twelve presidential candidates assembled in Otterbein University in Westerville, Ohio, on Oct. 15 for the fourth and largest Democratic primary debate so far.

Opioid epidemic shifts from prescription painkillers to street drugs

Prescription painkillers launched an opioid addiction crisis. That problem remains as the death toll from more deadly street drugs rises.

Trump lawyer claims lack of due process in House impeachment. 3 reasons the law doesn’t back him up

The top White House lawyer argues that the House has denied Donald Trump his legal due process rights. Constitutional scholars say that's wrong.

Ask PolitiFact: Answers to reader questions about the Trump impeachment inquiry, Hunter Biden

Our reporters investigated questions from readers about the House impeachment inquiry into President Donald Trump, as well as Joe and Hunter Biden and the whistleblower who set the investigation into motion. ​

Impeach a member of Congress? Over 200 years of history say no

The one and only time the Senate had a chance to deliver a clear ruling, it didn't.

The inaccurate or unproven things Rudy Giuliani said about Ukraine on 'This Week'

President Donald Trump’s personal lawyer, Rudy Giuliani, showed up to a TV interview with documents that he said proved collusion between Ukraine and Democrats in the 2016 presidential election. He leveled a series of accusations about Ukraine, Joe and Hunter Biden, and the whistleblower at the center of an impeachment inquiry into President Donald Trump. We found they were unproven, inaccurate, or need context.

9 things Donald Trump got wrong today on Ukraine, a whistleblower and the media

We fact-checked multiple falsehoods by President Donald Trump during an Oct. 2 press conference in which he spoke about his phone call with the president of Ukraine.

Why Ukraine? How an Eastern European country triggered tumult in American politics

What happened in Ukraine didn't stay in Ukraine. Nothing is inevitable, but we trace how the past two decades set the table for the president's phone call with Ukraine that led to an impeachment inquiry.