1. It’s Thursday, August 6, 2015.

2. It’s a big night for television.

At 9 p.m. ET is, according to the TV listings for Fox News Channel, “Republican Presidential Candidates Debate.”

But let’s face it. The program is really “Fabulous Donny Trump in the Republican Presidential Candidates Debate (also  featuring nine other guys).

People will interrupt their vacations or whatever else they might have done on a summer Thursday night to see exactly what Fabulous Donny will say. It’s the night we’ll find out exactly how serious Fabulous Donny is about this presidential race, and give us some insight of how much longer we’ll have him around.

3. Also on the agenda tonight, at 11 p.m. ET, is Jon Stewart’s last go-round as host of “The Daily Show.”

You wonder what the big gotcha will be, like Stephen Colbert’s rendition of “We’ll Meet Again” with about half the people who ever showed up on his program.

Warning to DVRers: It’s supposed to run 52 minutes, but there’s a real good chance it could run long. Set the DVR at two hours, and you really can’t wrong.

4. Today is the 50th anniversary of the signing of the Voting Rights Act by President Lyndon Johnson.

As if to remind us why this act is necessary, a federal court yesterday struck down a Texas (of course) law that required some sort of government-issued photo ID in order to vote. The law meant that while a voter registration card is invalid in Texas, a concealed-weapon license is.

Again, this is Texas. The state will probably appeal the ruling, since it’s more interested in making sure there are as many obstacles to minority citizen voting as they can possibly throw out there.

5. There are critics who say President Obama’s speech yesterday in support of the nuclear limitation deal with Iran was not presidential.

In it, he stated the obvious: the only alternative to the agreement is war, and that those who blast the agreement are pretty much in cahoots with radicals in Iran.

It’s funny — there are so many people about how political figures use obfuscatory language to state what’s on their mind. The president didn’t bother. He said what he meant, and meant what he said.

And he’s absolutely right.

The Republicans who oppose this agreement need to say to the American people that they are willing to send their sons and daughters to the Persian deserts to stop Tehran from getting nuclear weapons. It would be bloody and awful, and make the Iraq debacle seem like a preliminary event. And saying that there some be more negotiations with Iran is equally ridiculous. Our negotiating partners have sacrificed more than we have, and their patience would be tested if we turn away from the deal.

President Obama is serious about keeping Iran from getting nuclear weapons in the near future. His opponents need to say what they would do if they scuttle this agreement.