US Democratic Presidential candidate Joe Biden said he expects "personal attacks and lies" from Donald Trump in their first televised debate on Tuesday, comparing Trump to Nazi propaganda Chief Joseph Goebbels.

"It is going to be difficult," Biden acknowledged in an interview broadcast Saturday on MSNBC.

"My guess is, it's going to be just a straight attack. They're going to be mostly personal. That's the only thing he knows how to do," he said of Trump.

The debate Tuesday in Cleveland, Ohio will be the first time the 77-year-old veteran politician has faced the president he has promised to unseat. The men will meet again for two more debates before the November 3 election.

"He doesn't know how to debate the facts. He's not that smart," Biden also claimed. "He doesn't know much about foreign policy, he doesn't know much about domestic policy. He doesn't know much about the detail."

As a result, Biden predicted, "it'll be mostly personal attacks and lies, but I think the American people are on to him."

While, Trump has often mocked his Democratic opponent Biden for staying indoors, wearing the mask, and more. He has often compared Biden to a lazy man and called him 'Sleepy Joe'.

However, Biden claims he is ready to give strong and real reasons for "why I think he's failed and why I think the answers I have to proceed will help the American people and the American economy, and make us safer internationally."

Source: AFP