Last night was definitely the most raucous evening of the Republican National Convention, but tonight may prove to be even more dramatic.

Why? Donald Trump is set to take the stage for a speech the entire convention has been building towards.

Here are five story lines to watch.

Trump: The Main Event

Although he’s already taken to the stage at the RNC, tonight’s speech is the show-stopper.

This will be the first time that Trump addresses the Republican party since officially becoming its presidential nominee on Tuesday during the roll call.

Forecast Includes A Thunderstorm of Digs at Ted Cruz

People react to Sen. Ted Cruz during his address on the third day session of the Republican National Convention in Cleveland, July 20, 2016. (Matt Rourke/AP) People react to Sen. Ted Cruz during his address on the third day session of the Republican National Convention in Cleveland, July 20, 2016.

One of the biggest moments during last night’s convention came when former Trump rival Sen. Ted Cruz was booed off the stage after he clearly refused to endorse Trump.

There was speculation about whether or not Trump’s closest competitor -- who Trump regularly called 'Lyin' Ted' — would help unify the party by extending an olive branch, and then very clearly choosing his words in order to avoid specifically telling supporters to vote for Trump.

Instead, he told them to “vote their conscience” and “vote for candidates up and down the ticket who you trust to defend our freedom and to be faithful to the Constitution.”

Ivanka Expected to Wow the Crowds

Presumptive Republican presidential nominee Donald Trump, flanked by his daughter Ivanka, gives the thumbs-up on day three of the Republican National Convention at the Quicken Loans Arena in Cleveland, July 20, 2016.  (Jim Watson/AFP/Getty Images) Presumptive Republican presidential nominee Donald Trump, flanked by his daughter Ivanka, gives the thumbs-up on day three of the Republican National Convention at the Quicken Loans Arena in Cleveland, July 20, 2016.

The two eldest Trump sons, Donald Jr. and Eric, had their time to praise their dad on Tuesday and Wednesday nights respectively, but it's Ivanka's turn on Thursday.

The 34-year-old has been at her father’s side for much of the campaign, and is a popular figure. She's her father's most visible business partner, working in his real estate empire, and was a regular on her dad's reality show, "The Apprentice."

Final Day for Protests

Though there have been hundreds of people protesting in the streets of Cleveland throughout the course of the convention, the vast majority of the demonstrations have been peaceful.

As of Wednesday night, there had been 22 arrests in Cleveland since Sunday, which is rather low given the sheer number of protests.

That said, the momentum has been growing as the days have progressed, and Trump’s speech may draw out the most passionate response.

Shows of Unity

One of the biggest purposes of political conventions is to unite the party after the wounds of primary season, so it will be important to gauge the overall mood of the audience at the end of their four days in Cleveland.

Gov. Mike Pence surely won some skeptical Trump supporters over with his polished speech last night, and now it’s up to Trump to show his fans that the ticket has what it takes to succeed in the general election.