TODAY IN FEDERAL PARLIAMENT
* Both the House of Representatives and Senate return for a four-day sitting week.
* Labor leader Bill Shorten introduces a private bill aimed at protecting weekend penalty rates.
* Debate resumes in the lower house on measures to combat multinational tax avoidance.
* A Senate committee releases its report on a government omnibus bill tying an overhaul of childcare benefits to a raft of welfare cuts.
* Question time in both chambers at 2pm (AEDT).
WHAT'S MAKING NEWS
* Voter support for the government rebounds in the latest Newspoll, but Labor still leads the coalition 52-48 per cent.
* All Australians must obey the nation's laws and support its democratic processes, a government statement on multiculturalism will say.
* Former prime minister Paul Keating has hit out at suggestions the Turnbull government might allow young people to raid their superannuation for house deposits.
* Voters in some of the most conservative seats in Australia overwhelmingly support legalising same-sex marriage this year, according to a new poll of a dozen coalition seats.
* A clash over race-hate speech laws is looming at a meeting of the ministry on Monday.
* Treasurer Scott Morrison will launch a fresh attack on tax avoidance this week in parliament in a bid to get the so-called "Google Tax" pushed through and shift public attention towards the coalition's record on multinational tax crackdowns.
WHAT'S ON THE AGENDA
* House of Reps: MPs debate private bills and motions until midday; then government legislation for a national rural health commissioner; changes to pharmaceutical benefits; combating multinational tax avoidance; diverted profits tax.
* Senate: Senators debate government legislation for transport security; digital readiness; crowd-source funding; changes to interactive gambling laws; broadcast media reforms.
COMPETING ARGUMENTS
Government spin: We have comprehensive solutions to fix the price pressures in child care and all we need is Labor and the Senate to come on board.
Opposition attack: Cutting penalty rates is the thin edge of the wedge for the living standards and working conditions of all working Australians.
WHAT THEY'RE SAYING
"Accessing superannuation to buy homes is madness." Independent senator Derryn Hinch.
TWEETED
@samdastyari: Let's just take a moment to celebrate that 90% of Australians will still never vote for One Nation (Newspoll)
