Donald Trump unleashed a furious tirade at reporters on the White House lawn before leaving for his monumental summit in China. 

As Trump boasted about the grandeur of his new ballroom, a female reporter pressed him on what it would cost American taxpayers.

‘I doubled the size of it, you dumb person!’ Trump snapped. ‘You are not a smart person!’

Before the President’s shocking outburst, another female reporter asked Trump whether his ‘policies are not working’ after a new report found inflation is at its highest level in three years.

This is a developing story…