Updated May 28, 2012 10:05:42
Video: Tough week ahead for Labor (ABC News)
Related Story: Gillard hoses down talk of leadership rumblings
Related Story: MPs pledge support amid leadership speculation
Related Story: Anger over foreign worker import plan
Related Story: Gillard hits back over foreign worker backlash
Senior Labor figures have rallied around Julia Gillard amid fresh talk of a leadership challenge and anger in party ranks over the decision to let big miners import foreign workers.
Weekend reports that chief government whip Joel Fitzgibbon was canvassing numbers for a possible Kevin Rudd leadership challenge have thrown the spotlight back on Ms Gillard's leadership.
The other big issue facing the Government, the fate of suspended Labor MP Craig Thomson, will also feature today, with officials from Fair Work Australia set to get a grilling in Senate estimates hearings.
But the Coalition will not be able to question the author of the report into Mr Thomson and the Health Services Union (HSU) - because he is on leave.
Labor Caucus will meet tomorrow and one Labor MP has told AM there have been a lot of unhappy people in the Caucus - and they are getting unhappier.
Left factional heavyweight Doug Cameron is preparing to present the Caucus meeting with a motion on the controversial enterprise migration agreements which allow big miners to import foreign workers.
"My biggest concern is the lack of communication, the lack of coordination, the lack of consultation," Mr Cameron said.
He declined to comment on reports the Prime Minister did not know about government plans to allow mining billionaire Gina Rinehart to import 1,700 overseas workers until the last minute, or any implications it had for her leadership.
"I've got no comment about leadership issues, I don't think this has got anything to do with leadership," he said.
"People make mistakes, governments make mistakes, leaders make mistakes.
"It's challenging times for the Labor Party, I don't think anyone would be silly enough to say it wasn't.
"It's challenging times, but when the going gets tough, the tough get going, hopefully."
Video: Anthony Albanese speaks to ABC News Breakfast (ABC News)
Independent MP Tony Windsor says he was surprised by the Government's decision to rubber-stamp Ms Rinehart's applications to bring in foreign labour.
Mr Windsor is also the chairman of a parliamentary committee investigating whether 'fly in, fly out' workforces are good for regional communities.
He says the committee was not told about the workers being granted visas to work at Ms Rinehart's Roy Hill iron ore project in the Pilbara, and he wants the committee's terms of reference extended to include global foreign workforces.
"I think we need to know the fine detail here," he said.
"Who are these people that are coming in - I don't mean by nationality, I mean by profession. Are they highly-specialised workforces?
"I think the obvious question is, and I think all Australians would agree with this whether they're Right, Left or indifferent - is there an opportunity for Australians to fill those vacancies?"
Meanwhile, weekend reports Mr Fitzgibbon was urging MPs to dump the Prime Minister are fuelling the latest round of leadership speculation.
But another Caucus member has told AM the weekend stories were spread by Gillard supporters who have the most to fear from Kevin Rudd's return to the leadership.
On top of leadership speculation, the Government will have to deal with the latest chapter in the Thomson/HSU saga, with Opposition senators planning to interrogate Fair Work Australia president Iain Ross at estimates hearings.
Terry Nassios, the author of the 1,000-page report into Mr Thomson and the HSU, is on extended leave.
But Liberal Senator Eric Abetz says the contents of the report will be on his committee's agenda.
"The Opposition will be seeking to tease out from Fair Work Australia what they meant by Mr Thomson providing them with false and misleading information, and asking whether any of that false and misleading information came to Fair Work Australia via the Labor-funded lawyers," Senator Abetz said.
Discontent simmers amid more pressure on Gillard - ABC News (Australian Broadcasting Corporation)