Hoeven's fellow Republican Sens. Mike Crapo (Idaho) and Kelly Ayotte (N.H.) welcomed him to the site.
With Hoeven now tweeting, just six senators are the remaining hold-outs when it comes to using Twitter for their work in Congress: Max Baucus (D-Mont.), Jeff Bingaman (D-N.M.), Kent Conrad (D-N.D.), Herb Kohl (D-Wis.), Jim Risch (R-Idaho) and Jim Webb (D.Va.).