Donald Trump Donald John TrumpUS reimposes UN sanctions on Iran amid increasing tensions Jeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Trump supporters chant 'Fill that seat' at North Carolina rally MORE is viewed unfavorably by 7 in 10 Americans in a new national poll.

Seventy percent of U.S. adults have an unfavorable view of the presumptive GOP presidential nominee, according to the ABC News/Washington Post poll released Wednesday, a 10-point increase since last month.

ADVERTISEMENT

That's his highest unfavorable rating since the launch of his presidential campaign and is close to Trump's highest-ever unfavorable rating in the poll, 71 percent, from May 2015. Since then it's hovered closer to 60 percent and had fallen toward the end of the GOP primary season.

Those numbers come shortly after Clinton won enough delegates to become the presumptive Democratic presidential nominee. Still, national polls asking voters whom they plan to support in November have shown Clinton pulling ahead.

Clinton has higher favorability among members of her party than Trump does among his in the ABC poll: 75 percent of Democrats view Clinton favorably, and 65 percent of Republicans view Trump favorably.

Independents, which both candidates are seeking to win over, are tepid on both: 68 percent hold unfavorable views of Trump, and 63 percent hold unfavorable views of Clinton.

Republican leaders roundly criticized Trump last week after he accused a judge of being biased because of his Mexican heritage, and the businessman has this week feuded with President Obama, accusing him of prioritizing the nation's enemies over its allies.

The survey of 1,000 U.S. adults was conducted June 8–12 via landlines and cellphones with an overall margin of error of 3.5 percentage points.