And it's time for a change in the Senate for the Liberal Party when it comes to Tasmania.

This weekend pre-selectors will meet in Campbell Town to consider their Senate ticket for the upcoming federal election.

They will likely be asked to choose between long-serving senator Eric Abetz, rising star Jonno Duniam and Launceston-based newcomer Wendy Askew for winnable spots on the Liberal ticket.

Relegation to third spot could mean a departure from the upper house, with the pundits tipping the federal government not likely to fare that well unless it can turn around its performance.

It's unlikely that the preselectors will want to push Senator Duniam down the ticket, given his position as a junior minister and upward trajectory within the party.

Which means it becomes a battle between the Abetz and Askew camps for the other guaranteed spot.

After 27 years in the Senate and much longer around the Liberal Party, Senator Abetz remains a powerbroker with a lot of influence.

But his time has gone by.

He is unlikely to ever return to the ministry or another senior position within a Coalition government.

Should he manage to win enough support from preselectors today, the Liberal Party will again come under fire for preferencing men over women, a battle they won't want to be fighting in the lead-up to the election given the performance in the last couple of years from senior figures.

And some within the party seem to be seeking to point out the electoral risk that it faces if they do give Senator Abetz top billing.

They are highlighting that the electoral performance with Senator Abetz at the head of the ticket for the past two elections in 2010 and 2016, went backwards, and lost seats in the House of Representatives.

If that were to be repeated it could spell the end for the Morrison government, with retaining Braddon and Bass key to its future.