We're in Cleveland. If you're not, but you'd still like to hear from Melania Trump and the rest of the Republication convention's Monday night lineup, you can catch the action — at least, the inside the arena action, happening now — live here, at this link. Scroll down for tonight's full lineup — which, in an unconventional convention move, includes the presumptive nominee, who is expected to introduce his wife.

You can catch all The Washington Post's live team coverage of the first day of the convention here, here and here.

Republican National Convention begins in Cleveland

Here's one thing that already happened today, via Chris Cillizza: For weeks, rumors that rump Republicans dissatisfied with the idea of Donald Trump as the party's presidential nominee would stage a protest vote swirled. On Monday, those disgruntled Republicans made good on their pledge — sort of.

The fight happened just after 4 p.m. ET — three hours after the convention was gaveled in on its first day. At issue was the approval of the rules package that sets the parameters for the four-day convention. Pro-Trump forces tried to push through the package on a voice vote. Then this happened:

Angry anti-Trump Republicans demand roll call vote

(That could have gone better.)

"Roll call vote" was the chant of the anti-Trump forces, a desire to have each state, one by one, announce their support or opposition not only for the rules package but, more broadly, for Trump.

Arkansas Rep. Steve Womack was — unfortunately for him — tasked with overseeing this chaos.  The first time he tried to declare that the "ayes" (pro-Trump) votes had it, he was shouted down and left the stage.  Utah Sen. Mike Lee, a leading voice of the anti-Trump movement, called that decision to flee "surreal" and admitted that he had no idea what would come next.

What came next was a return  by Womack to the stage and a repetition of the voice vote. After declaring that the "ayes" had it (again), Womack noted that only six of the nine states demanding a roll call vote had stood firm.  Seven states were needed.

And, scene. The Iowa and Colorado delegations walked off the floor. Boos cascaded down.  But it was over.

Oklahoma Gov. Mary Fallin, once a potential Trump VP, took the stage soon after the eruption.  She spent her time touting the party's unity and the inclusive process of building the party platform. But no one was listening. Everyone was still talking about how the "Never Trump" forces went down in a blaze of glory.

--Chris Cillizza

For Republicans desperately hoping that unity would be the word of the day and the week here in Cleveland, however, the damage was done. The images of unhappy Republicans shouting for a chance to show their dissatisfaction with Trump and then walking out makes for just the sort of images out of this week that Republicans were hoping to avoid.

It showed, powerfully and with the eyes of the national media watching, that the idea that the GOP was rapidly uniting behind Trump is a pipe dream. And that divisions — real and serious ones — remain, no matter the rhetorical attempts to paper them over.

PARTY HEALING UPDATE: 

(Cleveland.) REUTERS/Mark Kauzlarich

Of course, even if it had worked, it wouldn't have worked, noted Philip Bump:

From the moment that Donald Trump stomped his way to victory in Indiana, the results of the Republican nominating process were not in doubt. It was clear at that point that Trump would have enough bound delegates to carry a majority at the convention. It was similarly clear that no one would get more votes than Trump, either, making it that much harder for the nomination to be snatched away from him.

And yet. On Monday, during the first day of that convention, there was a spirited but doomed effort to force a change to the rules that would ultimately, perhaps, unbind those Trump delegates, freeing the people in the room to vote for whomever they wanted. To vote, in other words, for someone besides Donald Trump.

It was clear for weeks that this wouldn't work, but still that effort on Monday. Why? Because there's still a big chunk of the Republican base that would prefer any candidate besides Trump as the nominee.

On Sunday, NBC News and the Wall Street Journal published poll results to that effect. Only 38 percent of Republicans, they found, were satisfied with their nominee, compared to 54 percent of Democrats who were satisfied with Hillary Clinton's position at the top of her party's ticket.

Pew Research found last month that the core group of Republicans who opposed Trump in the primaries -- 44 percent of the total, per their analysis, as well as a majority of votes cast -- were only slightly more likely than not to say they were certain they'd back Trump in the general election.

....Preferring Trump to no one doesn't mean Republican voters are all happy about Trump. Fewer than 4-in-10 like Trump as an option and, one might assume, were happy to see an attempt to dislodge him. If that effort had been successful, though, it would have been a very small dog catching a very large car: Then what?

Preferring Trump to no one doesn't mean Republican voters are all happy about Trump. Fewer than 4-in-10 like Trump as an option and, one might assume, were happy to see an attempt to dislodge him. If that effort had been successful, though, it would have been a very small dog catching a very large car: Then what?

--Philip Bump

Cleveland is lovely this time of year — but not everyone is enjoying the view.

Here's a snapshot of some of rest of the day's action before the action:

Anti-Trump protesters march through Cleveland

(Above: Anti-Trump protesters march through Cleveland)

CONVENTION COMING ATTRACTIONS: TONIGHT'S LINEUP

Also speaking tonight:

Duck Dynasty star Willie Robertson
Former Navy SEAL Marcus Luttrell 
Actor Scott Baio
Patricia Smith, mother of Benghazi victim Sean Smith
Benghazi attack survivors Mark Geist and John Tiegen
Kent Terry and Kent Terry-Willis, The Brian Terry Foundation
Actor Antonio Sabato, Jr.
Immigration reform advocates Mary Ann Mendoza, Sabine Durden and Jamiel Shaw
Rep. Michael McCaul (R-Tex.)
Milwaukee County sheriff David Clarke 
Rep. Sean Duffy (R-Wis.) and Rachel Campos Duffy
Colorado Senate nominee Darryl Glenn
Sen. Tom Cotton (R-Ark.)
Karen Vaughn, mother of Navy SEAL killed in action
Retired Lt. Gen. Michael Flynn
Jason Beardsley, Concerned Veterans for America
Rep. Ryan Zinke (R-Mont.)
 

YOUR DAILY TRAIL PIT STOP: Many Republicans — many, many more than usual — are far from Cleveland today, doing important non-Cleveland things. Amber Phillips had a good rundown of a few of those things, like this one: