This week's edition of The 45th newsletter.

US presidents have traditionally started their first terms with visits to Mexico or Canada, but Trump's audacious international journey, which kicked off this week, stretches across five countries, two summits and three holy sites. It's an excursion his senior staff are reported to see as an opportunity to reset "the narrative of his presidency".

Monday night's suicide bombing in Manchester has changed the conversation of the trip just as Trump was expected to turn his attention to trade, NATO and the European Union – his final leg taking him to the Vatican, Italy and Belgium.

Back at home, investigations continue into allegations of Russian meddling in 2016 presidential election. Former FBI director James Comey will testify in an open hearing before the US Senate Intelligence Committee shortly after Trump returns home. Comey's testimony is poised to be a potentially momentous event for the Trump presidency.

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