Nancy Cook

In the hours leading up to the March 4 contests in four states, the presidential candidates are concentrating their efforts...

All attention in Tuesday's primaries is on Texas and Ohio, but voters in two other states are going to the...

A largely blue-collar state, Rhode Island should arguably be an easy win for New York Sen. Hillary Clinton in the...

Many key, delegate-rich states are trying to overhaul their voting systems in time for Super Tuesday, or at least before...

Evangelicals make up roughly 50 percent of the GOP base in South Carolina, but they don't always vote as a...

Michigan holds its presidential primaries on Jan. 15. Here, a guide to what's at stake for the candidates, and the...

Arizona Sen. John McCain has won the N.H. GOP primary, largely because of the support of the state's independent voters....