President Trump’s period of self-isolation following a positive Covid-19 test clearly has an impact on his ability to campaign in the general election. So the question has been asked about the chances of it being delayed and how this might happen.

Under US law, the presidential election is held on the Tuesday after the first Monday of November, every four years – so this year it is on 3 November.

Changing the date would be up to US lawmakers, not the president. It would require a majority in both Houses of Congress to vote in favour of any date change. That is unlikely given it would have to pass through the Democrat-controlled House of Representatives.

Even if it were changed, the US constitution rules that a presidential administration only lasts for four years. So, President Trump’s term will automatically expire at noon on 20 January 2021.

Changing this date would require an amendment to the US constitution. This would have to be approved by two-thirds of US lawmakers or state-level legislatures, then three-quarters of US states – which is, again, unlikely.