The economy is expected to be the focus of the presidential campaign this week when both top candidates make major speeches in the same city on their plans for the country if they are elected.

Republican Donald Trump will speak Monday and Democrat Hillary Clinton will appear Friday in Detroit - the struggling midwest city that is headquarters of the U.S. automobile industry.

"I will be the greatest jobs president that god ever created," Trump has said.

His plans are expected to include large corporate tax cuts for business and industry and to renegotiate trade deals that he says give all the advantages to countries such as China and Mexico.

Former U.S. Speaker of the House of Representatives Newt Gingrich, whose support of Trump has been lukewarm, was asked on Fox News Sunday if Trump's plans are economically sound.

"Of course not...no candidate's numbers add up."

Clinton has said she will put forth the biggest jobs creation program since World War II, focusing on rebuilding crumbling infrastructure, such as repairing and building roads, bridges, and airports. She said she will pay for it by making sure the wealthy and corporate America pay their fair share of taxes.