Those who support Donald Trump unconditionally have not wavered. Their support encompasses numerous groups and reasons, but first and foremost, they believe Trump gives them what they want.
The very first scientific horse race poll, which took place 85 years ago, was shrouded in secrecy and may have changed history – even though it was faulty.
How did a small, rural state become so influential in the presidential nominating process? A political scientist traces the development of the first-in-the-nation Iowa caucus.