Watch today's 60 Sec Elec political round-up below:
He called the decision the "fiscally responsible thing to do at the present time".
Meanwhile, Labour leader Jeremy Corbyn promised to put an end to the "tax tricks" that allow the "biggest corporations to avoid paying their way".
In his speech he said “it’s not anti-business to say that the largest corporations should pay their taxes just as smaller companies do.
"And it’s not anti-business to want prosperity in every part of the country, not only in the financial centres in the city of London."
Lib Dem leader Jo Swinson pledged to scrap business rates if voted into power. She announced to the CBI her party would scrap business rates to support small businesses and "breathe new life into our high streets".
She said: "The Liberal Democrats are committed to supporting small businesses who are the engine of our economy.
"That's why the Liberal Democrats would scrap business rates and replace them with a commercial landowner levy.
"It will shift the burden from the tenant to the landlord so that we can breathe new life into our high streets."
Helping small businesses: watch a report from our Political Correspondent Alison Mackenzie:
[Small businesses call for help to protect jobs and growth](http://Small businesses call for help to protect jobs and growth)
Meanwhile, Brexit Party leader Nigel Farage was not at the conference, but he took to social media to talk about the event. He said small and medium sized enterprises would in fact benefit from a 'clean break with EU rules.