Every presidential campaign ad the Hawkeye State has seen leading up to caucuses, charted.
The address spent less time on defense and economy; more on global leadership and political reform.
Here are the other ways American presidents have summarized the nation's condition.
The most frequent visitors to Iowa and New Hampshire failed to gain traction in the race for the White House this year.
How the Republican-controlled Senate compared to 2014.
Fun for the whole family.
We crunched the numbers on how candidates spend on the campaign trail.
We're tracking how contributions from PACs, political parties, and individuals are shaping the 2016 field.
A text analysis shows Democrats are much more likely to attack conservative ideology and not a specific candidate.
Since 2014, 88 congressional districts have seen school shootings.
Under his reign, fewer bills were enacted per Congress than ever before.
Fiorina made up for lost time, and Cruz faded into the background.
But there's still little appetite to talk about more restrictions.
We track the money powering the 2016 slate.
With each passing year, more schools failed to meet the standards laid out by No Child Left Behind.
National Journal Hotline's Staffer Tracker maps the relationships between candidates and past campaigns through their key staff.
Most commonly? Practicing law and serving in the military. Least commonly? Tailoring and cattle ranching.
Ten years ago, only 20,000 American same-sex households could marry. Today, the total is more than 700,000.
He's as well-liked as other candidates with Hispanic ties, but still trails Clinton.