Two government senators,Alex Antic and Gerard Rennick,have already declaredthey will not support government legislation in the upper house over the issue and five government senators sided with One Nation on an anti-vaccine mandate bill on Monday.
If Mr Christensen makes good on his threat,which he issued via his newsletter late on Monday evening,the government will struggle to pass laws such as its proposed religious freedom,voting and class action changes.
Mr Christensen did not say if he would oppose every government bill but he said he would support the government on supply and confidence motions,which it requires to stay in power.
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“To be clear,until federal action is taken against vaccine discrimination,I will be voting according to my conscience (or abstaining from votes) on bills and substantive motions rather than just voting with the government as MPs usually do,” Mr Christensen said.
Mr Christensen,who represents the Queensland electorate of Dawson for the Liberal National Party and sits with the Nationals in Canberra,but has repeatedly takenfringe positions during the pandemic that havealienated his colleagues.
“I have no doubt this stance will result in personal attacks on me,” Mr Christensen said of his vaccine decision.