The 2022 midterms:the three challenges Biden and the Democrats face as they try to avoid defeat in November.

The party of the US president often loses ground in midterm elections. As the midterms in November this year come into focus, Rob Ledger and Peter Finn review three issues that may be key in deciding whether Democrats are able to hold slender majorities in the US House of Representatives and the US Senate: the COVID-19 pandemic, Donald Trump, and the economy.