With less than two weeks until Election Day, the battle for the presidency between Republican Donald Trump and Democrat Kamala Harris, both nationally and in key battleground states, is within the margin of error, neck-and-neck, according to CNBC's latest national poll.

Trump is ahead on economic issues, while Harris leads on character issues, including honesty and fitness for the presidency.

According to CNBC's quarterly All-American Economic Survey CNBC, Trump is supported by 48 percent of registered voters, while Harris is gaining 46 percent - a 2-point difference that is within the poll's margin of error of plus or minus 3.1 percentage points.

That slight 2-point lead for Trump is unchanged from the August CNBC poll, and it's virtually unchanged from an NBC News national poll conducted earlier this month by the same pair of bipartisan polling companies that showed the candidates separated by 48% each. 

Pollsters conducting the CNBC survey say inflation remains a powerful force affecting the election: 63% of voters nationwide said they believe their household income is falling below a living wage, and nearly half of voters cited it as a top issue in the election, up from a previous CNBC poll. 

On issues and presidential qualities, the poll shows Harris ahead of Trump by 13 points nationally on the question of which candidate has the necessary mental and physical preparation to be president, and she beats him by 10 points on a measure of honesty and trustworthiness. Trump, however, has a 7-point advantage nationally over Harris on which candidate is better at strengthening the economy in their communities.

Trump also has an 8-point advantage on tax and business issues and a 9-point advantage on helping small businesses.