US President Joe Biden has told Congress that Vladimir Putin badly misjudged how the West would hit back once he invaded Ukraine.
The Biden administration asked Congress on Friday to approve $6.4bn (£4.8bn) in aid for Ukraine.
Former President Donald Trump on Tuesday praised Russian President Vladimir Putin's decision to send Russian troops into Ukraine to support Russian-backed separatists in the Luhansk and Donetsk provinces. In an appearance on the right-wing talk radio program "The Buck Sexton Show," Trump broke his conspicuous silence on the crisis to applaud the Russian dictator.
Former US President Donald Trump and two of his children must answer questions under oath in a New York investigation into their business practices, a judge has ruled.
Police in the Canadian capital of Ottawa have warned that action is "imminent" as they prepare to clear a blockade of protesters in the city.
The mayor of Canada's capital Ottawa has declared a state of emergency in response to more than a week of truckers' protests against Covid restrictions.
Former US Vice-President Mike Pence has dismissed claims by Donald Trump that he could have stopped Joe Biden becoming president last year.
Russia is planning to fabricate a pretext for an invasion of Ukraine, by falsely blaming Ukrainian military for an attack on Russian-backed separatists or Russia itself, US officials say.
The Army said Wednesday it will immediately begin discharging soldiers who have refused to get the mandatory COVID-19 vaccine, putting more than 3,300 service members at risk of being thrown out soon.
Some 8,500 combat-ready US troops are on high alert to deploy at short notice amid rising tension over Ukraine, the Pentagon says.
Russia's unmanned Luna-25 spacecraft has crashed into the Moon after spinning out of control, officials say.
Donald Trump has confirmed that he will not take part in Republican presidential debates with his rivals in the race for the White House.