Washington (CNN) – Will it spark an altercation between tea party activists and establishment Republicans?

On Monday, leaders and supporters of FreedomWorks - a major tea party sponsor - will make an unscheduled visit to the offices of the National Republican Senatorial Committee, the group that helps elect Republicans to the Senate. And the activists will deliver a message to the NRSC: butt out of the Utah senate race.

At issue: Republican Sen. Orrin Hatch's re-election to a seventh term in 2012.