From Trump's warning of violence on the streets to US inflation ticking up, here are all the other stories that happened while Chancellor George Osborne was speaking.
Obama to visit the UK
US president Barack Obama will be paying a visit to the UK at the end of April, allowing him to show gratitude to Britain for its partnership during his presidency.
"He will be received in London by her majesty Queen Elizabeth II at Windsor Palace for a private lunch. He will also be hosted by prime minister David Cameron at Number 10 Downing Street," according to a release from the White House today.
... he also made a supreme court nomination
Obama also nominated veteran appellate court judge Merrick Garland to the US Supreme Court today, a move which could spark a political feud with senate Republicans who have vowed to block any Obama nominee.
Garland is currently chief judge of the US Court of Appeals for the district of Columbia. He was picked to replace long-serving conservative Justice Antonin Scalia, who died on 13 February.
Belgium identifies killed gunman
Belgium identified the gunman shot dead yesterday following a raid linked in investigations into the Paris attacks as Mohamed Belkaid, a 35-year-old Algerian who had been living there illegally.
They added that they were also holding two men. One had been admitted to hospital near Brussels with a broken leg, and authorities are still assessing whether they were connected to the shooting.
Trump warns of riots
Republican presidential candidate Donald Trump warned there would be riots if he's denied the party's presidential nomination after a string of victories in the primaries.
It comes a day after Trump scored victories in Florida, Illinois and North Carolina. However, he lost the key state of Ohio, and this could help those in the party trying to stop him.
US core inflation inches up
Consumer prices, minus food and energy costs, rose 0.3 per cent in the month to February. They added 2.3 per cent year-on-year, up from 2.2 per cent in January.
This beat forecasts from economists polled by Reuters who predicted that the core CPI would rise 0.2 per cent last month, and increasing 2.2 per cent from a year ago.