Caucus chaos, Bloomberg's cash splash and Trump's acquittal

Caucus chaos, Bloomberg’s cash splash and Trump’s acquittal: what does it mean for American foreign policy? A surreal week in US politics, with a huge debacle counting votes at the Iowa caucus to select a Democratic presidential candidate. But was the strongest candidate even on the ballot?  Also, Trump delivers an upbeat State of the Union on the eve of the vote of his impeachment acquittal. Amidst all this drama, what do the tea leaves say about the future shape of US foreign policy?And, UK MP Tom Tugendhat on post- Brexit diplomacy and Huawei: has the UK let the fox into the hen house?Last week, Boris Johnson decided to grant Huawei limited access to the UK’s 5G network. Australia and the US vociferously opposed the decision, arguing it threatens not only Britain’s national security, but also the integrity of the Five Eyes intelligence sharing agreement. Are their fears justified? Or is everyone getting just a little paranoid?