Two weeks remain before the midterm elections and Democrats are on the defensive, doing their best to keep control of Congress.

President Barack Obama and First Lady Michelle Obama have hit the campaign trail hard. Yet, it may not be enough to prevent a major Republican victory.

The goal for Democrats in the homestretch before Election Day is to motivate their base. Obama tried to do just that Sunday in Ohio.

He returned to his familiar campaign cadence from 2008 as he railed against Republicans.

"It is up to you to tell them we do not want what they are selling, we've been there before and we are not going back," the president said.

Michelle Obama, whom the White House calls "the closer," is more popular than her husband.

In the next two weeks, the president and the first lady are scheduled to campaign separately, criss-crossing the country in last-minute high-profile stumping, Democrats say, will help them at the polls.

"I actually think we're going to hold the House and the Senate," former DNC Chairman Howard Dean said on CBS' Face the Nation Sunday.

While the media coverage may appear to be in their favor, Democrats are finding themselves increasingly at a disadvantage.

Political analysts believe Republicans likely will regain control of the House, picking up anywhere between 40 to 60 seats. They could reclaim the Senate as well.

As for fund-raising, the GOP maintains a cash advantage in most of the competitive key races heading into the final days before the elections.

Republicans credit the enthusiasm gap to excitement generated by the Tea Party.

"The American public is in the right-center of the road," said Sen. Lindsey Graham, R-S.C. "They're not in the right ditch or the left ditch. So our Tea Party friends have done us a favor."

Equally as encouraging for the Republicans, a new Associated Press poll that suggests two-thirds of Americans who voted for Sen. John McCain, R-Ariz., in 2008 said they are certain to vote, while just half of Obama's supporters say they will do the same.