The former United Nations ambassador and South Carolina governor was the last major rival against Trump in this year's primary contest. She waited two months after dropping out in March to say she would vote for him. Then last week, she announced she would instruct her convention delegates to vote for Trump but wasn't planning to attend the convention.

It wasn't until Sunday - hours after the shooting - that her office reversed itself and said she would speak.

It's likely that she will call on her party to show cohesion in the face of this fall's general election battle against President Joe Biden.

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Many of the speeches Monday focused on economic policies and claims that Biden had mishandled the economy.

On Tuesday, the overview shifts to immigration and crime, according to Trump's campaign and the Republican National Committee, with the theme of "Make America Safe Once Again."

Be on the lookout for speakers to argue that they have been damaged by Biden-era immigration policies. Trump and Republicans believe the border debate is among their strongest issues.

As part of a broader attempt to blame crime on border policies, expect speeches from family members of slain people in cases where immigrants in the U.S. illegally face criminal charges. Trump has repeatedly brought up the issue at rallies this year.

Last week, the Trump campaign and the RNC announced that the brother of Rachel Morin - a Maryland woman whom prosecutors say was killed and raped by a fugitive from El Salvador - would be one of the speakers at the convention. Officials say the suspect, Victor Antonio Martinez Hernandez, entered the U.S. illegally after allegedly killing a woman in his home country.

He was arrested last month in Oklahoma and charged with first-degree murder and rape in Morin's death.

Following chants of "we love Trump" from the crowd, RNC Chair Michael Whatley declared that the convention is in recess until 5 p.m. CT Tuesday.

CeFaan Kim has more on Donald Trump's arrival at the Republican National Convention two days after the assassination attempt at his rally.

Rapper Amber Rose, one of several celebrities speaking at the convention, spoke on Monday night about what made her come around to former President Donald Trump in a speech that drew applause from the former president.

"The media has lied about Donald Trump," she said, eliciting lots of "yeahs" from the crowd, according to an ABC Digital reporter.

"The first person I knew that supported Donald Trump was my father. I was shocked. My entire family is racially diverse. I believed the left-wing propaganda that Donald Trump was a racist," she said.

She said the "left told her to hate Trump," but that she did her research and started watching rallies.

"I realized Donald Trump and his supporters don't care if you're black, white, gay or straight. It's all love," she said, prompting a large applause from Trump.

Trump smiled as Rose said, "When I met the president and Melania for the first time, he was kind and generous and funny as hell -- very funny."

She touched on high gas prices and a "failing" education system.

"When you cut through the lies, you realize the truth. American families were better when Donald Trump was president," she said.