President Trump said if the press would report the news fairly, his poll numbers would be much higher.

During an impromptu news conference by Trump on the South Lawn as he was departing for Japan, the president was asked if he was worried another investigation would hurt his chances for reelection in 2020.

"I don’t know. My poll numbers are very good. You don't like to report them, but I guess we have a 48 [percent] today. We have a a 51. We have very good poll numbers considering. Now I have to tell you, if you people would give straight news, I would be at 70. I’d be maybe at 75. But you don’t give straight news. You give fake news. With fake news, I’m still winning the election," Trump said.

"But if you gave serious, good news the way you’re supposed to, I’d probably be at 70 or 75 based on the economy alone," he said.

Trump has an average 42% approval rating, according to RealClearPolitics. Quinnipiac's poll has the lowest approval rating, at 38%, with Rasmussen Reports and Fox News' polls the highest rating at 46%.

[Opinion: How Trump's approval rating will shape the 2020 Democratic primaries]