US citizens were more likely to focus on Trump's personal traits and style when talking about potential negative aspects of Trump's presidency, according to the survey.

More than four out of 10 US nationals cannot say anything positive about billionaire businessman Donald Trump possibly becoming the country's president, a poll released on Wednesday found.

The United States will elect a new president this November. Despite his controversial remarks on migration, Trump leads other Republican hopefuls in opinion polls.

US citizens were more likely to focus on his personal traits and style when talking about potential negative aspects of Trump's presidency, a new Gallup survey conducted between January 6 and 10 showed.

Most of those polled said he did not think before he spoke, while others said that as president Trump would lack political experience and be too arrogant, racist, hot-headed or simply "idiotic." A few people said they feared he would be an embarrassment to the country.

Issue-wise, respondents focused on the negative effect he would have as the US leader on foreign relations, saying he would probably drag the country into wars.