CONCORD, N.H. — New Hampshire is seeing one of its busiest days yet for Republicans considering presidential campaigns.

Mississippi Gov. Haley Barbour, former Pennsylvania Sen. Rick Santorum, and former Minnesota Gov. Tim Pawlenty all will be in the state today.

Santorum and Pawlenty will be sticking around until Friday, when they’ll be joined by former Godfather’s Pizza CEO Herman Cain and former Louisiana Gov. Charles “Buddy” Roemer at a tea party rally in Concord. Texas Rep. Ron Paul also will be in New Hampshire Friday for a speech at St. Anselm College.