welcome to newsday, reporting live from singapore, i'm karishma vaswani. the headlines. britain's prime minister is battling for his future, facing calls to resign, because of parties at downing street during lockdown dramatic scenes in parliament, as a conservative mp defects to labour, and a former minister joins the calls to quit. "you have sat there too long, for all the good you have done. in the name of god, go." also in the programme: us presidentjoe biden marks his first year in office with a press conference — defending his record and warning president putin of the costs of invading ukraine. and making formula one history — 22—year—old guanyu zhou