Census.gov is a great resource for providing demographic based data for a variety of stories.
For example, one chart provides data for the poverty rate over time. 
This information could be included in an article that attempts to discuss Donald Trump’s claims about the economy, perhaps indicating that the decreasing poverty rate is attributable to more than his claim of making the economy great. As it can be indicated that the poverty rate in recent years has been in decline.
There are a number of ways that this information could be used, but this may be the most relevant given Trump’s recent State of the Union address.
Census.gov also provides a far wider variety of data including information about health, economy, and education.


