Today (January 12) marks the first day that Montana candidates can offically sign up to get their names on the ballot for the next election cycle. Among the candidates gathering in Helena today is Denny Rehberg who will be challenging Senator John Tester for his U.S. Senate seat. Many pundits believe that the Tester vs. Rehberg contest will be one of the closest races in the nation this year. Rehberg spoke with KGVO News this morning to tell us why he's signing up.

Denny Rehberg will be holding a press conference today at the Montana State Capitol Building at 2:15 p.m.