While President Trump’s busy throwing himself a flashy, taxpayer-funded birthday blowout on Saturday in Washington, D.C., a totally different kind of party’s popping off across America — and spoiler, no cake, says one political activist … and No Kings.

That’s the theme of the “No Kings Day” protest event set for tomorrow … Ezra Levin joined us on “TMZ Live” to discuss the philosophy and the practical tactics of the coast-to-coast clapback at the Trump Administration’s exercises of power … and he’s crystal clear that the nationwide protest is all about peaceful people power under the Constitution.

Marches are scheduled Saturday in large cities and small towns across the country, in red states and blue … the overall event is meant as a firm demonstration in support of democracy and against monarchy — and a reminder to the president he’s not an absolute ruler.

Instead of packing D.C. with protesters and handing Trump a potential crackdown moment he might be craving, Ezra says they’re flipping the script — taking the protest everywhere else across the nation.

Levin’s in Philadelphia — site of the signing of the Declaration of Independence, of course — where he says as many as 80,000 people are expected to come out and march in the streets there. He tells us about training volunteers to deescalate dangerous confrontations with authorities, and how to “wage nonviolence” in a “joyful, peaceful display.”

As you know, public protests have erupted across the country in the past week — sometimes violently — in reaction to Immigration and Customs Enforcement raids targeting undocumented immigrants. In Los Angeles, Trump federalized thousands of California National Guard troops and called up 700 active-duty Marines to protect federal buildings — against the wishes of Mayor Karen Bass and Governor Gavin Newsom.

The man who Antonio Brown allegedly tried to kill in a shooting last month says the dispute that led to the gunfire was sparked by a remark about money.

Zül-Qarnain Nantambu joined Charles and Elex on “TMZ Live” on Friday and explained he and Brown had big beef long before their differences turned physical outside of a celebrity boxing event back on May 16.

Nantambu alleged that a few years ago, when they were both in Dubai for a Floyd Mayweather fight, Brown stole some jewelry from him. Nantambu said the incident actually resulted in a lawsuit, which he claims ended in a judgment against the former NFL star.

Nantambu said when he hit up Adin Ross‘ Brand Risk event in Miami and saw Brown there — he reminded the ex-Steelers receiver about the debt he owed … “and then that’s when the attack happened.”

Nantambu claimed Brown hit him … and then several of the athlete’s friends raced in to tag him as well. He said it all resulted in him needing seven stitches just above his eye.

He added that he believes a bullet that Brown eventually fired at him toward the end of the altercation might have grazed his neck.

As you know, an arrest warrant for Brown has been issued over the allegations … but he hasn’t seemed to sweat it much — posting a video of him Friday riding a bike with a smile on his face.

Caitlyn Jenner is safe in Tel Aviv after traveling there for a huge Pride parade, according to event organizers in the city … though missiles are still raining down on the city.

The reality star and former Olympian shared a picture Friday afternoon capturing the streaks of missiles in the night sky … with smoke rising up from the city and flashes of light ballooning across the horizon.

She captioned the post, “A ‘quiet’ night in Tel Aviv. There is not a place I’d rather be, than with the brave people of Israel. God, please continue to shield and protect us.”

Photos have surfaced on the Hebrew news outlet Mako of Caitlyn sipping on wine. The outlet’s caption reads, “During the Iranian attack: Caitlin Jenner entered the protected space with a glass of wine. She’s all ours! ❤️.”

Caitlyn’s had an eventful trip to Israel … sharing photos from what looks like the Western Wall in Jerusalem — with her head resting on the hot stone.

ICYMI … last night the Israeli military attacked Iran — with strikes focused on the country’s nuclear program and high-ranking military officials and scientists. Iran’s retaliating Friday … and, the U.S. is helping Israel fend off missile attacks by the Iranian military.

We caught up with Caitlyn before she left on her trip … and, said she was excited to attend the second-largest Pride event in the whole world.