Trump ridiculed for new 'bonkers' attack on Obama ahead of the former president's DNC speech
President Donald Trump (Photo: Screen capture)

At President Donald Trump's latest press briefing, he devoted time to attacking former President Barack Obama, saying "I see the horror that he's left us — the stupidity of the transactions he made."

The president drew anger and mockery on social media for his efforts to tear down Obama, who will be speaking at the Democratic National Convention this evening.