WASHINGTON - According to two tracking polls, Republican presidential nominee Mitt Romney holds a slight edge over President Barack Obama among likely voters nationwide as the campaign moves into the final stretch.

In the latest Washington Post/ABC News tracking poll, Romney leads the president by 3 points among likely voters, 50 percent to 47 percent. The same poll put the Romney ahead by one point, 49 percent to 48 percent. Both results were within the poll's margin of error. The Post/ABC poll surveyed 1,386 likely voters between October 21 and 24, incorporating two nights of responses collected after the final presidential debate.

The results are mirrored by the latest Gallup daily tracking poll, which also shows Romney edging the president 50 percent to 47 percent. That finding was also within the margin of error for the poll, which surveyed 3,000 likely voters over seven days.

Romney's lead in the Gallup poll has dwindled from recent highs. Last Sunday, Gallup showed the Republican nominee with a 7 point advantage over the president.

Despite Romney's lead in polls nationally,  Obama holds small leads in a number of crucial swing states, including Ohio, Wisconsin and Nevada.

The Washington Post announced the results of the poll on a day it endorsed Obama for his second term arguing he's better equipped to take on economic challenges, while Romney would blow hole in budget.

"As Romney hits 50, the President stands at 47%, his lowest tally in Post-ABC polling since before the national party conventions. A three-point edge gives Romney his first apparent advantage in the national popular vote, but it is not one that is statistically significant with a conventional level of 95 percent confidence," The Washington Post said.

In fact a slew of national and regional polls hit the waves on Thursday ahead of the November 6 elections  all indicating that it is a dead heat between the two candidates Mitt Romney and Barack Obama and that the contest has now reduced to some key battle ground States like Ohio, Nevada, Virginia and Florida.

Meanwhile, the Obama Campaign dismissed polls that Romney has closed the gap with regard to women voters and the two candidates are now virtually tied. Meanwhile, President Obama today said he was “proud” and “humbled” to learn he has the support of former US Secretary of State Colin Powell, who announced that he is endorsing Obama for a second term.  “I’m grateful to him for his lifetime of service to his country both as a soldier and as a diplomat,” the president told 15,000 Virginians this afternoon. “And every brave American who wears this uniform of this country should know that as long as I’m your commander in chief, we will sustain the strongest military the world has ever known. We will be relentless in pursuit of our enemies. Those are promises I’ve kept.”

Powell, who broke with the Republican Party to endorse then-Senator Obama in 2008, offered his continued support for the president today, saying he’s concerned Mitt Romney’s foreign policy is a “moving target.”  “I voted for him in 2008 and I plan to stick with him in 2012, and I’ll be voting for he and for Vice President Joe Biden next month,” Powell told CBS News. Powell cited the president’s handling of the economy and foreign policy in explaining his decision. “When he took over the country was in very, very difficult straits, we were in one of the worst recessions we had seen in recent times, close to a depression,” Powell said. “We were in real trouble.”