Today will be a chance for the 250 appointed senators to prove their mettle. By late evening, the 250 members of the Upper House and 500 MPs in the Lower House are expected to have cast votes on a charter amendment seeking to strip the Senate of its power to take part in electing a prime minister.
The charter amendment plan calls for a change to Section 272 of the constitution which has cast an unfavourable light on the neutrality of the Upper House.
