You can generate a Twitter widget here:  Widgets can be created for user timelines, favorites, lists and searches.  

Once you click the link:

Login to your section's twitter account 

Then configure the twitter widget in one of the four timeline sources.

Once you've clicked Create Widget, code will be generated as seen below.  Copy the code and return to your section website.

Create a new content item, and paste the copied code into the HTML tab of the content item.