<Tr> <Td_colspan="2"> <Table> <Tr> <Td> ← 2016 </Td> <Td> On or before 18 May 2019 (half - Senate) <P> On or before 2 November 2019 (House of Representatives) </P> </Td> <Td> </Td> </Tr> </Table> </Td> </Tr> <Table> <Tr> <Td> ← 2016 </Td> <Td> On or before 18 May 2019 (half - Senate) <P> On or before 2 November 2019 (House of Representatives) </P> </Td> <Td> </Td> </Tr> </Table> <Tr> <Td> ← 2016 </Td> <Td> On or before 18 May 2019 (half - Senate) <P> On or before 2 November 2019 (House of Representatives) </P> </Td> <Td> </Td> </Tr> <P> On or before 2 November 2019 (House of Representatives) </P>

When will the australian federal election be held
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