Mitt Romney’s presidential campaign is getting a little help in Virginia from a friend — and vice presidential contender.

Sen. John Thune (R-S.D.) (Manuel Balce Ceneta/AP)

Sen. John Thune (R-S.D.) will be in Springfield Friday morning for the official grand opening of the presumprive Republican nominee’s office there, the Romney operation’s 24th in the state. President Obama’s campaign also has 24 offices in Virginia, after opening four more this week.

Thune is widely believed to be among those Romney is considering for the No. 2 spot on his ticket, though few observers consider him the frontrunner. Thune is also doing an event in Virginia Beach Thursday night to highlight the Romney campaign’s continued attack on Obama’s now-famous “you didn’t build that” remark.