With both majority Democrats and the US president's own Republican Party lining up against a mammoth 700-billion-dollar rescue plan for Wall Street, US President George Bush was to speak to the nation Wednesday evening (0100 GMT Thursday) to drum up support.
The escalating US financial crisis, which has frozen credit around the world, is now impacting the US presidential campaign, with Republican nominee John McCain, 72, suspending his campaign and heading back to Washington Thursday in a bid to break the legislative logjam.
Democratic nominee Obama said that he did not want to "confuse" Congress with presidential politics and would return to the Senate from the campaign trail only at the request of his Democratic Party's legislative leaders.