Once the “civil war” among Democrats ends, Teamsters boss Sean O’Brien said American workers demand attention.

“There’s got to be a vision,” O’Brien told the Herald Tuesday afternoon. “This election clearly signaled American people were fed up.”

The angst in the Democratic party after an election that swept President-elect Donald Trump back into the White House — and with Republicans set to control both chambers of Congress — is a stinging rebuke of the party of Joe Biden, Nancy Pelosi and Chuck Schumer, he added.

“The Democrats need a reset. Nancy Pelosi needs to take a look in the mirror, and do it sooner than later,” O’Brien said. “Good leaders look for a succession plan and that clearly wasn’t the thought process.”

O’Brien, who first joined the Teamsters at 18 in Charlestown, said his Boston upbringing has him always seeking bipartisan solutions, but manipulation by entrenched media handlers and a Democratic party that had “no ground game” and stubbornly left “talent” on the sidelines, has exposed a critical “disconnect.”

That disconnect resulted in Trump’s 75.15 million popular votes — and 312 Electoral College nods — to Vice President Kamala Harris’s 71.89 million votes and 226 electors.

It has also left rattled consumers stuck with inflation fears and a housing crisis that seems impossible to harness. Both factors propelled Trump back into office along with a broken immigration system.

“After the civil war in the Democratic party, there needs to be a cease-fire and for them to not be so vindictive on differing opinions,” said O’Brien. He offered up the example of his powerful GOP convention address this summer that he was ready to deliver at the DNC — that’s until enemies on the “far left” ripped him for being seen with Republicans. The Teamsters voted not to endorse in this presidential election.

“They missed a big opportunity,” O’Brien said of the snub, adding the Biden-Harris-Pelosi operatives were more into “talking down” to people than collaborating.

“Time will tell if President-elect Trump will embrace union workers,” O’Brien added, saying the GOP needs to “demonstrate they are the working man’s party.” But at least they invited him to the party.

The International Brotherhood of Teamsters has over 1.4 million active members and 500,000 retirees making it one of the largest unions on Earth. O’Brien is the no-nonsense head of that guild and a lifelong Democrat. But the price of groceries doesn’t escape him, he added, or seeking out like-minded worthy leaders.

“There’s a lot of talent out there in the country,” he said, naming Josh Shapiro and Gretchen Whitmer, governors of Pennsylvania and Michigan, respectively, as two quick examples. “I’m from Massachusetts where we get a lot done.

“What the Democratic party got wrong is what we’ve been saying for the past eight months,” he added. “Instead of being consulted, they tried to talk down to you. Both parties need to step up and prove they support the working people.”