Morning mail: Trump's impeachment trial begins, AstraZeneca vaccine concerns, Kyrgios calls Djokovic a 'strange cat'

Tuesday: Democrats dismiss Trump's legal defence that impeachment is unconstitutional. Plus: open letter calls for Eddie McGuire to resign

Good morning. Strap yourselves in for a busy day of US politics as Trump's impeachment trial gets underway. There's a lot of Covid concerns cropping up today - could Toowoomba's local health facilities handle a mass outbreak if a quarantine facility was built there? And what now if the AstraZeneca vaccine doesn't work against the South African variant? If that's too much politics and Covid for you, scroll down for the sex, drugs and witch of Kings Cross.