Former Mayor of New York Michael Bloomberg unleashed a string of attacks at Republican presidential nominee Donald Trump, calling his a “dangerous demagogue” and “a risky, reckless, and radical choice’ in the November election.

“There are times when I disagree with Hillary. But whatever our disagreements may be, I’ve come here to say: We must put them aside for the good of our country,” Bloomberg said in a primetime speech at the Democratic National Convention on Wednesday. “And we must unite around the candidate who can defeat a dangerous demagogue. I believe it’s the duty of all American citizens to make our voices heard by voting in this election. And, if you’re not yet registered to vote, go online and do it now! It’s just too important to sit out.”

Using a term once used by Senator Marco Rubio in the Republican primary, Bloomberg pointed to Trump’s past in the businesses sector to warn the American people of promises made by a con artist. “I’m a New Yorker. And New Yorkers know a con when we see one,” said Bloomberg. “Truth be told, the richest thing about Donald Trump is his hypocrisy.”

“I understand the appeal of a businessman president. But Trump’s business plan is a disaster in the making,” he asserted. “He would make it harder for small businesses to compete, do great damage to our economy, threaten the retirement savings of millions of Americans, lead to greater debt and more unemployment, erode our influence in the world, and make our communities less safe. The bottom line is: Trump is a risky, reckless, and radical choice. And we can’t afford to make that choice.”

Bloomberg went on to make the case for Hillary Clinton. “I know Hillary Clinton is not flawless. No candidate is. But she is the right choice – and the responsible choice – in this election,” the former Republican mayor stressed. “No matter what you may think about her politics or her record, Hillary Clinton understands that this is not reality television. This is reality.”