Minnesota Congresswoman Michele Bachmann is scheduled to endorse Mitt Romney at a Portsmouth, Va., campaign event later on Thursday.

The former Republican presidential candidate’s expected announcement will come a day after former House Speaker Newt Gingrich formally suspended his campaign. Bachmann ended her own White House bid after a disappointing sixth place finish in the Iowa Republican caucuses.

Former Pennsylvania Sen. Rick Santorum, who ended his own campaign last month, is scheduled to meet with Romney in Pittsburgh on Friday.