MILWAUKEE— Immigration took center stage as the Republican National Convention resumed Tuesday, with speakers spotlighting a key element of former President Donald Trump ‘s political brand that helped endear him to the GOP base when he began his first campaign in 2015.

Among speakers Tuesday night were families who’ve been impacted by violent crime — part of a GOP strategy to link crime to border policies. They include the family of Rachel Morin, a Maryland woman whom prosecutors say was killed and raped by a fugitive from El Salvador and whose story has been frequently highlighted by Trump on the campaign trail.

Immigration has long been one of Trump’s banner issues, as he has criticized the unprecedented number of migrants entering the country illegally through the U.S. border with Mexico. The numbers of unauthorized crossings have fallen abruptly after President Joe Biden issued a rule suspending many asylum claims at the border.

At rallies and other campaign events, Trump has pointed to examples of migrants who committed heinous crimes and has blamed migration for the trafficking of drugs like fentanyl, even though federal data suggests many people smuggling fentanyl across the border are U.S. citizens. He has vowed to carry out the largest deportation operation in U.S. history.

Trump’s anti-immigrant rhetoric has also strayed into talking points not backed by evidence, including unfounded claims that migrants are entering the country to vote in the 2024 election.

Senate candidates who were addressing the convention not only blamed Biden for the number of migrants crossing the border, but just as often faulted Vice President Kamala Harris, whom Republicans have increasingly focused on amid speculation that she could replace Biden as the Democratic nominee after the president’s poor debate performance.

The GOP candidates, mindful of their own races, sought to blame their Democratic opponents as well. Pennsylvania candidate David McCormick, for example, tied his challenger, Sen. Bob Casey, with the term “Biden-Harris-Casey wide open borders.”

Kari Lake, the party’s Senate candidate in Arizona, stuck to a message that appealed largely to the GOP base and her reputation as a former television news anchor turned conservative firebrand. She blasted the “fake news” for spending “the last eight years lying about President Donald Trump and his amazing patriotic supporters.” She also blamed Biden and Democrats for the situation on the U.S.-Mexico border, saying they’re “full of bad ideas.”

Bernie Moreno, who is running for the Senate in Ohio, spoke about how his parents immigrated from Colombia, emphasizing that they immigrated legally and alleging that Democrats have “encouraged millions” of people crossing the border illegally “to invade America.”

Meanwhile, delegates at the Milwaukee convention expressed joy and gratitude at Trump’s presence after surviving the attempted assassination Saturday at a rally in Pennsylvania. His ear bandaged, Trump appeared at Monday night’s session to rousing cheers, his expression often seeming subdued.

One of the delegates in the crowd could be seen with a folded white piece of paper over his ear — an apparent tribute to the bandage Trump wore Monday.

Trump and Ohio Sen. JD Vance, his vice presidential choice, are scheduled to appear in the convention hall every night, according to two people familiar with the schedule who were not authorized to speak publicly.

The nominee and his newly minted running mate sat together Monday night in Trump’s first public appearance following the assassination attempt. Vance is expected to give his own speech Wednesday night, with Trump to headline Thursday night’s closing evening.

Pennsylvania Republican Party Chairman Lawrence Tabas said he hoped the assassination attempt on Trump would reset the tone nationally, beginning with Trump’s scheduled remarks Thursday.

“After a brush with death, I do believe — going through that — that his message will be better, and I think will appeal to our better emotions,” Tabas said in an interview after the Pennsylvania GOP’s delegation breakfast in suburban Milwaukee.

Trump, who has long decried rivals with harsh language and talked about prosecuting opponents if he wins a second term, seemed poised to deliver a more toned-down speech. His eldest son, Donald Trump Jr., said in an Axios interview outside the RNC that he spent three or four hours going through his father’s convention speech with him, “trying to de-escalate some of that rhetoric.”

“I think it lasts,” the younger Trump said of the change in his father’s rhetoric. “There are events that change you for a couple minutes and there are events that change you permanently.”

Kari Lake speaks during the Republican National Convention Tuesday in Milwaukee. (AP Photo/Matt Rourke)