Liz Halloran

Kentucky may be the site for tonight's debate between the vice presidential candidates, but the monster swing state of Ohio remains the focus of White House dreams for President Obama and Mitt Romney.

Both the incumbent and his challenger have been in and out of the state with increasing frequency; GOP vice presidential candidate Paul Ryan plans a trip to the Buckeye State on Friday, after his tangle with Vice President Joe Biden.

Who Is He?

Joe Biden: Biden, whose own presidential aspirations sputtered in 1988 and again in 2008, brought to the Democratic ticket foreign policy chops and an ability to relate to working-class voters. In his 36 years representing Delaware in the U.S. Senate, he became known as more pragmatist than ideologue. He has also made a somewhat dubious name for himself because of his volubility and not infrequent verbal stumbles. But he has parlayed those potential liabilities into an effective, if occasionally unpredictable, campaign trail presence.

A slew of new presidential polls released this week not only confirm a long-established gender gap among voters, but also suggest that the male-female preference divide in this year's presidential contest could hit historic levels.

It may surprise that that divide appears not driven by social issues and arguments over reproductive care or choices, analysts say, but largely by the national conversation over the size of government.

Republican dreams of taking control of the U.S. Senate in November have been declared all but dead over the past several days by prognosticators pointing to trouble facing the party in unexpected places.

Missouri and Indiana come to mind.

But don't count Senate race analyst Jennifer Duffy among them.

"I'm not ready to call this done and over," Duffy said of the GOP's push to pick up four seats, which would definitely tip the Senate balance of power. "We seem to be in some period of transition. Whether it's permanent or not, we'll know in a couple weeks."

President Obama leads Republican Mitt Romney by 8 points nationally — 51 to 43 percent among likely voters — as the race heads into the final stretch, according to a new Pew Research Center poll released Wednesday.

Obama's advantage, particularly among women, blacks and voters younger than 30, puts him "in a strong position compared with past victorious presidential candidates," Pew reported.

Republicans scrambling to turn Mitt Romney's videotaped aspersions cast on 47 percent of Americans into a campaign opportunity are hoping for a "Chick-fil-A moment."