Powell, who said he'd vote for Hillary Clinton in 2016, also posed questions about the constitutionality of Trump's conduct as president.
"I haven't voted for him, so I'm not going to start now, but that's a different question from actively supporting Biden", said Mark Sanford, the former Republican South Carolina governor who mounted a brief primary challenge to Trump a year ago.
Powell said he's "very close" to Biden on social and political issues and would speak out for him during the election campaign. "And the president's drifted away from it", Powell said.
In a scathing indictment of Trump on CNN, Powell denounced the USA president as a danger to democracy whose lies and insults have diminished America in the eyes of the world.
"Campaigning is not my strong suit, and I will be speaking for him, but I don't plan to make campaign trips", he said.
Central Florida Under Flood Watch From Tropical Storm Cristobal
Overall, this is already our third named storm of this hurricane season, which officially began just six days ago. Cristobal is expected to maintain tropical storm strength through landfall later on Sunday.
Stocks Climb on Surprisingly Upbeat Jobs Report
Oil looked set for its sixth weekly gain after OPEC+ reached a tentative agreement to extend record production cuts. The S&P 500 is now within 8.1% of its record set in February after earlier being down almost 34%.
Police Union Doxxed NYC Mayor’s Daughter After She Was Arrested During Protest
She was given a court summons and then released. "That officer should have his gun and badge taken away today", de Blasio said. De Blasio and Cuomo, who have frequently been at odds over the years, offered different versions of events Tuesday.
Trump's former defense secretary, retired General Jim Mattis, last week denounced what he called Trump's "deliberate" efforts to divide the country.
Powell, who is the first African-American to serve as the chairman of the Joint Chiefs of Staff and secretary of state, joined with other former military leaders who criticized the president's comments about using U.S. troops to stop unrest following the death of George Floyd.
The president tweeted a response declaring Powell "a real stiff".
Mattis' comments came a day after the current Defense Secretary, Mark Esper, said he wouldn't support Trump's proposal to use the U.S. military on protesters. "They didn't, but off we went to WAR!" "And I think what we're seeing now, the most massive protest movement I have ever seen in my life, I think this suggests that the country is getting wise to this, and we're not going to put up with it anymore".
He said he generally didn't like "demonizing other people" and instead preferred to talk about policies and solutions to problems.
"Didn't Powell say that Iraq had 'weapons of mass destruction?' They didn't, but off we went to WAR!", the president added. Trump wrote. "He has no choice, the Dems are controlled by the Radical Left".