‘Enormous consequences’ if Russia invades Ukraine – as it happened

• Pelosi says she will seek re-election
• Biden says any invasion from Russia would change the world'
• President discusses escalating conflict with European leaders
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Staff turnover in the Biden administration is nowhere near what it was under Donald Trump, when senior aides came and went as through a revolving door in a hurricane.

Nonetheless, the press always likes a bit of speculation about who might be in and who might be out, and here comes the Washington Post with an exhaustive examination of how Ron Klain, Joe Biden's chief of staff, has not had the smoothest first year in the job.