Donald J. Trump won the US presidency in November on a campaign that repudiated both his opponent and the Obama administration. Today he took the oath of office and became the nation’s 45th president—despite the political pundits and polls predicting victory for his Democratic rival, Hillary Clinton.

The Republican’s ascendancy from billionaire real estate mogul to the world’s most powerful elected official promises to usher in a new era, one that includes a remaking of the Supreme Court and alterations of US policy when it comes to space, broadband, healthcare, manufacturing, immigration, cyber defense, the environment, and even foreign relations (from diplomacy to the reliance on foreign labor enjoyed by companies like Apple). All of these potential changes only seem more imminent due to the fact that the newly inaugurated Trump, and his Vice President Mike Pence, enjoy a GOP-controlled House and Senate.

“The time for empty talk is over. Now arrives the hour of action,” Trump said moments after he was sworn in by Chief Justice John Roberts.