Explainers

Joe Biden has overtaken Donald Trump in Pennsylvania. If he wins there, he wins the presidency.
The Trump campaign team has launched a series of legal challenges.
Here's your ultimate guide to the key timings, predictions and swing states.
Donald Trump could refuse to leave the White House even if he loses the election.
The protests against police brutality and the Special Anti-Robbery Squad began in early October.
Here's what you need to know about the new NHS plan for curbing the spread of Covid-19 in the UK.
The lockdown can't last forever, but easing it will almost certainly lead to more cases.
Texas traders were being paid to buy barrels of crude after the coronavirus pandemic shook the world economy.
They could be being betrayed by their own immune systems.