As the United States welcomes its 45th president, the United States Studies Centre is taking the opportunity to forge its own new beginnings. This week marks the conclusion of Election Watch and the introduction of our new weekly digest, The 45th. Every Wednesday we'll provide you with a round-up of the week's biggest news in US politics, specialised analysis from our experts, a look at the developments affecting the US-Australia alliance, a diary of upcoming events, and the week's best tweets and video.