Newt Gingrich
Newt GingrichReuters

Newt Gingrich's campaign on Wednesday announced it is downsizing to pursue a "big choice convention" strategy.

The campaign plans to lay off one-third of its full-time employees and scale back campaign appearances, Politico reported.

The move comes after months of lackluster results for Gingrich who has trailed far behind front-runner Mitt Romney and dark horse Rick Santorum in delegate totals.

Gingrich – whose campaign has accumulated more debt than cash on hand – has replaced his campaign manager in order to pursue a “big-choice convention” strategy.

Former campaign manager Michael Krull – who took over following a high-level revolt in June – stepped down from his post last week.

His replacement, longtime staffer Vince Haley, now plans to return the campaign to "core Gingrich, which is a focus on big ideas and positive solutions."

Gingrich has only won two contests this primary season, South Carolina and Georgia, and lost his southern base to Santorum. But his campaign insists he's "in the race for the long haul."

The campaign told Politico the shake-up will help the campaign transition "into an organization appropriate for winning a big-choice convention."

This "big choice convention" will focus on "affecting the national dialogue to show that Gingrich is the most capable of defeating Obama" and a “direct appeal to the delegates."

The Republican National Convention will be in August.