Polls weren’t all that reliable in predicting the outcome of the election, but we can get to the truth if we know how reliable a survey is and how to analyze it

Teresa Manning, Donald Trump’s likely choice for a key family planning job, has said contraception’s ‘efficacy is very low’ over the years – but is she right?

Here’s what a little fact-checking shows about how well the president has followed through on issues such as immigration and federal regulations

How would someone go about finding the true wage gap numbers across gender and race groups in the US? Mona Chalabi investigates on Equal Pay Day

By age 30, about 22% of American sons will be working for the same employer at the same time as their fathers. But how does that compare with other countries?

In the latest instalment of Just the Facts, Mona Chalabi takes a deep dive into the National Weather Service and its forecasting system - and stumbles upon a way to become the best weather forecaster the world has ever seen

The Republican healthcare plan wants to crack down on ‘high dollar lottery winners’ – how many of those are there?

Mona Chalabi scours the internet for reputable sources to investigate the president’s recent suggestion of a correlation between immigration and crime

Mona Chalabi attempts to answer your questions about the motivation behind this week’s decision to reverse protections for transgender students

This week, the president argued that parts of Chicago were ‘worse’ than much of the Middle East in terms of safety. Here’s how you can be the fact-checker

The president has asserted that the media overlooks acts of terror. In her new fact-checking column, Mona Chalabi looks at the data to bring you answers