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

Ask PolitiFact: Does a video show Joe Biden confessing to bribery? No

Both Joe Biden and Donald Trump leaned on Ukraine. Here are the differences.

7 questions about the Trump and Ukraine impeachment hearings, answered

PolitiFact readers asked us several questions related to the impeachment inquiry and public House hearings.

Should Trump be impeached? What law professors said at the House hearing

The House’s impeachment inquiry moved to a new phase on Dec. 4, as the House Judiciary Committee invited four legal scholars -- three called by Democrats, one by Republicans -- to testify about the history and law of impeachment.

What we know about the Politico story at the heart of a Ukraine conspiracy theory

PolitiFact has previously reported on the similarities and differences between Ukrainian and Russian election meddling. But we decided to take a closer look at the Politico story to outline what it does — and doesn’t — show about Ukraine’s involvement in 2016.

Who is Democratic presidential candidate Deval Patrick?

After deciding not to run, the former Massachusetts jumped into the Democratic primary as a centrist candidate. Here's his profile.

Fact-checking Trump’s falsehoods on Fox & Friends about Ukraine, impeachment and Mueller report

President Donald Trump repeated several falsehoods about Ukraine, Russia and the impeachment inquiry during an interview on Fox & Friends.

Who is Alexander Vindman? What to watch for in Tuesday impeachment testimony

Lt. Col. Alexander Vindman managed Ukraine policy for the White House National Security Council. What he saw doesn't line up with the Republican version of events.

5 key moments during Marie Yovanovitch's impeachment testimony

Former ambassador to Ukraine Marie Yovanovitch might have been the only witness in Friday’s impeachment hearing, but she was upstaged by a tweet from President Donald Trump.

Who is Marie Yovanovitch, the former ambassador to Ukraine removed by Trump?

Yovanovich ended up crosswise with Trump and Giuliani. She told the impeachment inquiry committees how it unfolded for her.

Fact-checking Trump, Ukraine impeachment hearings, day 1

The Democrats called on American diplomats in Ukraine to offer public testimony about the Trump administration's pressure on Ukraine to investigate Burisma and the Bidens. The Republicans called it another attempt to undermine the 2016 election.