EFEUSAWashington

Republican presidential nominee Donald Trump continues to claim that the voter surveys are underestimating his support and on Thursday focused on campaigning in Ohio and North Carolina, two states he must win, but which - even if he does prevail there - may not ensure him victory in the Nov. 8 election.

The two states, along with Florida - another state where the mogul is focusing his efforts in the last 12 days before the vote - constitute fundamental pieces in his strategy for assembling the 270 electoral votes needed to win the White House.

In Springfield, Ohio, Trump on Thursday criticized the "stupidity" of President Barack Obama for "lying" about his signature health care reform to provide insurance coverage to all Americans. In recent days, it has been learned that health insurance premiums under Obamacare for middle class families who bought insurance on their own will rise significantly in 2017.

Trump is using this new revelation as a weapon against the current administration and his Democratic rival, Hillary Clinton, whom he denounced as the most "corrupt" person who has ever tried to become president.

The GOP candidate also criticized the Clinton Foundation after the revelations by WikiLeaks exposing tensions regarding the money former President Bill Clinton earned giving speeches and taking advantage of the foundation's structure and image.

"The more e-mails Wikileaks releases, the more (the) lines between the Clinton Foundation, her State Department and Clinton's personal businesses ... get blurred," Trump said.

"We read about Clinton confidant Doug Band bragging he had funneled tens of millions of dollars to Bill Clinton Inc. through the foundation donations, paid speeches and consulting contracts. Mr. Band called the arrangement 'unorthodox.' The rest of us call it outright corrupt," he added.

Trump said that if he wins the election he will attack the Washington political elite, an approach which in recent days he has called "draining the swamp" in the capital.

In addition, he reiterated some of his controversial proposals, such as imposing increased tariffs on China, building a wall along the U.S.-Mexico border and having Mexico pay for it to halt illegal immigration and completely halting the Syrian refugee resettlement program.

After campaigning heavily in Florida over the past three days, the magnate this week will focus on widening his one-point lead in Ohio, a lead calculated by the RealClearPolitics Web site, which gives Trump an advantage only in that swing state and in Iowa.

Meanwhile, the former secretary of state campaigned on Thursday in North Carolina along with highly popular first lady Michelle Obama, urging people to get out and vote on Nov. 8, or earlier, due to what she said was the historic importance of this election.

She promised to help create good jobs, provide affordable higher education and ensuring greater inclusion for women, minorities and gays, and she urged supporters not to let the progress made during the Obama administration fall by the wayside.

Although Clinton appears to be comfortably ahead in most voter surveys, and thus seems poised to win the election, she has also urged supporters not to become complacent and feel that the election result is a foregone conclusion, but rather to make sure they go to the polls.

By Jairo Mejia.