Imagine a time when presidential candidates declared just two months before Iowa. Flash back to 1979 when Ronald Reagan announced. It's not just timing that's shifted; so has the culture.
On gay rights and immigration, Republicans running for president, like Florida Sen. Marco Rubio, are trying to navigate a tricky course between their party and the country at-large.
The junior Republican senator from Florida is expected to jump into the race for the presidency Monday. He has some strengths — but also some hurdles to overcome.
The Republican senator from Kentucky is getting a jump on what is likely to be a crowded GOP field in 2016. Polls show him in a three-way tie for third place for his party's nomination.
As Paul embarks on a presidential campaign, he doesn't fit into the mold of either party neatly. Especially on foreign policy, the Kentucky senator faces a challenge.
The party and its leading 2016 contenders are finding themselves between a rock and hard place because of Indiana's and Arkansas' recently amended laws.