Washington - As Democrat Barack Obama and Republican John McCain prepare for the second presidential debate on Tuesday, their campaigns have taken on a nastier tone on the airwaves and over the internet.

Obama revived McCain's role in the savings and loans scandal of the late 1980s and early 1990s, while the Arizona senator's campaign called Obama "dangerous" and emphasized his meeting in 1995 with a member of a radical 1960s anti-Vietnam war group.

Washington, Oct. 6 : Senator Barack Obama has decided to preempt plans by Senator John McCain to portray him as having sinister connections to controversial Chicagoans.

Obama officials call it political jujitsu - turning the attacks back on the attacker.

McCain officials had said early in the weekend that they plan to begin advertising after Tuesday’s debate that will tie Obama to convicted money launderer Tony Rezko and former Weathermen radical William Ayers.

But Obama isn''t waiting to respond. His campaign is going up Monday on national cable stations with a scathing ad saying:

Washington, Oct. 6 : Presidential candidates Barack Obama and John McCain have presented conflicting visions of how they plan to shrink American military presence in Iraq.

According to a New York Times report, Obama, reacting to General Petraeus’s demand for “maximum flexibility” in setting withdrawal schedules, said he “pushed back” when he met with the commander in July by making the case for sending more forces to Afghanistan, which the Democratic candidate views as the main battleground against terrorists.

Washington, Oct. 4 : The economy continues to remain the number one issue on the presidential campaign trail, with both John McCain and Barack Obama saying that the race will be won or lost based on who carries the most clout on that issue.

"I''m glad to see that we''ve finally got this dealt with," Barack Obama told reporters Friday after the bill passed, adding: "The final thing is understanding that even if this rescue package works exactly as it should, it''s only the beginning. ... The fundamentals of the economy aren''t sound, and we''re gonna have to do a lot of work moving forward."

New York, Oct. 4: Alaska Governor and Republican vice-presidential candidate Sarah Palin has said that she disagreed with the McCain Campaign's decision to pull out of Michigan.

In an interview with FOX News on Friday, Palin said that she and her husband Todd would "be happy" to campaign in the economically distraught battleground state.

Palin said the decision to pull out of Michigan, which was announced Thursday, was "not a surprise" to her since polls showed McCain slipping in the state.