Tanya Plibersek hopes to keep health portfolio, but won't say if she backed Kevin Rudd A poll boost has put Labor back in the election contest as party leaders hit the campaign trail. HEALTH Minister Tanya Plibersek says she hopes to keep her portfolio when the federal cabinet reshuffle is announced, but she's refused to say how she cast her vote in last week's leadership ballot. "I am not going to talk about our internals," she told the Seven Network this morning. We are lucky to have had a choice between two excellent prime ministers. Ms Plibersek denies the government will struggle with a loss of talent and experience after six Gillard government ministers tendered their resignation in the wake of the leadership ballot. She says she welcomes new female faces to cabinet, including Victorians Jacinta Collins and Catherine King. I think it's terrific that we have got these new women coming in to cabinet and we have got a very talented backbench. Health Minister Tanya Plibersek says she hopes top keep her portfolio when Kevin Rudd announces his cabinet tomorrow, but she refuses to say how she voted in last week's leadership ballot. There's a lot of people there who have been champing at the bit to get into the policy detail that you get to experience when you are a minister. The new cabinet line-up is due to be sworn in on Monday. Ms Plibersek conceded the government "will miss the people who are leaving." But if you haven't got a full tank then it's important I think to move on because it is a gruelling job. The health minister, who is in Sydney on Sunday to announce new medicines such as the abortion drug RU 486 will be listed on the PBS, says the core values of the new Labor government remain constant. "I think you will see the core of our policies will remain," she said. Of course any new prime minister has the ability to make some changes and certainly will think about whether there are tweaks to make in those big policy areas. Ms Plibersek's comments come as a new Galaxy poll shows that a Kevin Rudd is the preferred prime minister by 51 per cent of voters, compared with the 34 per cent who want to see Opposition Leader Tony Abbott in the Lodge. Meanwhile, union leaders have paid tribute to retiring Labor politician Greg Combet, championing his representation of Australian workers and "historic" efforts at combating climate change.