The political future of a rising star within the Federal Government is in limbo with party officials yet to endorse his pre-selection.

Key points: Littleproud received unanimous pre-selection support among local branch members

Littleproud received unanimous pre-selection support among local branch members LNP officials yet to endorse pre-selection 3 months after branch vote

LNP officials yet to endorse pre-selection 3 months after branch vote The Minister holds safest federal government seat in Queensland

Cabinet minister David Littleproud was unanimously pre-selected by branch members in his western Queensland electorate in August.

But three months on, that vote is yet to be endorsed by LNP officials in Brisbane.

The delay means Mr Littleproud is the only sitting LNP incumbent yet to be re-endorsed.

Mr Littleproud has been touted as a future leader of the federal National Party, with some in the party keen for him to replace incumbent Michael McCormack after the next federal election.

He declined to comment when contacted by the ABC, citing party rules that govern the pre-selection process.

The ABC contacted the LNP's head office on multiple occasions seeking a comment but officials were yet to respond.

Party officials held a state executive meeting in Bundaberg last weekend and released a list of MPs they had endorsed to recontest their seats.

While some in the party said it was a procedural matter, other sources said Mr Littleproud was out of favour with senior party officials.

There are also reports Mr Littleproud's choice of green office branding has caused consternation among figures within the LNP.

When the Liberal and National parties merged in Queensland in 2008 the newly formed LNP adopted a blue and yellow colour scheme for its branding.

Party members accused Mr Littleproud of helping moderate businesswoman Susan McDonald beat conservative incumbent Barry O'Sullivan in senate pre-selection earlier this year — a claim Mr Littleproud rejects.

Federal Agriculture Minister David Littleproud holds the Coalition's safest seat in Queensland. ( Supplied: David Littleproud )

Mr Littleproud became the Minister for Agriculture and Water Resources in December last year, 17 months after first arriving in Canberra.

He sits in the federal National partyroom and holds the safest government seat in Queensland — the sprawling electorate of Maranoa — with a margin of more than 17 per cent.

His influence within Cabinet has come under question since the Liberal Party ousted former prime minister Malcolm Turnbull, who had regularly consulted with Mr Littleproud on drought and regional issues.

But Prime Minister Scott Morrison has instead opted for Mr McCormack to support him at drought announcements since coming to power.

Since coming to Cabinet, Mr Littleproud launched overhauls of the live export and wool industries, offered a scathing assessment of his own department and reached a bi-partisan deal to secure the future of the Murray-Darling Basin Plan.

Mr Littleproud and former deputy prime minister Barnaby Joyce are the main contenders likely to replace Mr McCormack if there is a leadership change.

"He's the new kid on the block, the fresh apple off the tree so it doesn't have any bugs on it," a Nationals MP told AM in October.

But others in the party say he's too inexperienced to be a viable National Party leader so soon into his political career.