Jon Greenberg is a staff writer 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

Is North Korea ready to scrap its nuclear weapons?

Multiple reports say North Korea is willing to put denuclearization on the table. But is that more than a shift in tone?

Fact-checking Facebook CEO Mark Zuckerberg's congressional testimony

We asked a variety of tech watchers to assess Zuckerberg's accuracy. They noted some important omissions.

Fact-check: Donald Trump’s defense of Scott Pruitt’s rent, security, EPA record

Donald Trump defended EPA chief Scott Pruitt. He got three key facts wrong.

Oklahoma teacher pay dispute: Does cost of living make a difference?

There's a simple way to compare teacher pay from state to state based on cost of living differences. It's misleading, economists say.

Spending bill's gun research line: Does it nullify Dickey amendment?

A line that promotest gun violence research in the $1.3 trillion spending package has gotten a fair bit of press. It grants no new power or money to HHS and the CDC, leaving some to question it's impact.

Fact-checking the March For Our Lives

Crowds of young people marched on Washington and other cities to call for more gun restrictions and protest gun violence after the shooting at Marjory Stoneman Douglas High School.

Increase in murders by immigrants in Tulsa?

In a radio interview, Tulsa's homicide chief said he'd seen an increase in murders by immigrants. We looked at the details. There were two last year and the year before that. Amounting to about 2 percent of all murders.

PolitiFact fact-checks Darkest Hour, Dunkirk, The Post

We look at the accuracy at some of the Oscar nominees for best picture. 

Fact-check: Darkest Hour movie gets Winston Churchill mostly right

The Winston Churchill biopic stays within the guardrails of historical fact, but it does take liberties. 

Dunkirk fact-check: Movie indulges a few myths but also uses the facts

Never content to simply enjoy a good movie, we wanted to find out how closely "Dunkirk" matches what really happened on a beach in France in May 1940.