Vice President Kamala Harris is slated to attend the funeral service for her "dear friend," the late U.S. Rep. Sheila Jackson Lee, D-Texas, in Houston later this week.

The "Celebration of Life" is scheduled for Thursday at Fallbrook Church, according to Jackson Lee's office.  

Other elected officials in the U.S. and abroad are also expected to attend the service, according to Fox 26.

Jackson Lee died on July 19 at the age of 74 following a battle with pancreatic cancer. She is survived by her husband, Elwyn Lee, and her two children, Jason and Erica.

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She also previously battled breast cancer, having been diagnosed in 2011, before announcing the following year she was cancer free.

The congresswoman had represented Texas' 18th congressional district for 30 years. Prior to her time in Congress, Jackson Lee served as a judge before she was elected to an at-large Houston City Council seat in 1989.

Last year, she ran an unsuccessful campaign for Houston mayor, losing by a wide margin to then-state Sen. John Whitmire, also a Democrat, before announcing she would seek re-election to Congress.

Harris said after Jackson Lee's death that the congresswoman was a "tenacious advocate for justice and a tireless fighter for the people of Houston and the people of America." The vice president also remembered her as a "dear friend for many years, and a fellow member of Alpha Kappa Alpha Sorority, Incorporated."

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"As a member of the Congressional Black Caucus, I had the opportunity to work closely with her on many issues and to observe her leadership firsthand. She was relentless — one of our nation's fiercest, smartest, and most strategic leaders in the way she thought about how to make progress happen," Harris said in a July 20 statement. "There was never a trite or trivial conversation with the Congresswoman. She was always fighting for the people of Houston and the people of America."

Jackson Lee, Harris' statement said, was "first and foremost, a leader dedicated to serving the people of her beloved city."

"Congresswoman Jackson Lee was also a national leader," Harris' statement added. "As a champion for women’s rights, she played a vital role in reauthorizing the Violence Against Women Act, landmark legislation that improved the lives of millions of women and girls across the country. She also authored the law that made Juneteenth a national holiday, a law I was proud to co-sponsor as a United States Senator. She saw what could be — a nation that is more equal, more fair, and more free — and she dedicated her life to realizing that vision."

This is the vice president's third visit to Texas in the last month and second since she became the Democratic Party's presumptive presidential nominee, including a trip to Houston last week.

Harris visited Houston's Emergency Operations Center on Wednesday to receive a briefing on the recovery efforts following Hurricane Beryl. The next day, she delivered remarks at the American Federation of Teachers' 88th national convention.

Earlier this month, she was in Dallas to give a speech at an Alpha Kappa Alpha Sorority Inc. convention.

Former president Donald Trump's top advisers and his U.S. Secret Service detail have privately raised questions about why they weren't notified that local police were tracking a suspicious person before that same person attempted to assassinate Trump at a rally in Pennsylvania.

Gunman Thomas Matthew Crooks, 20, opened fire at the July 13 rally in Butler, Pennsylvania, killing one spectator and injuring two others. The former president additionally suffered an injury to his ear from the shooting.

The head of Pennsylvania State Police told a congressional committee last week that at least 20 minutes before Crooks shot at the former president, local countersnipers observed him acting strangely, took his photograph and sent it to a command center with state troopers and Secret Service agents.

According to the Washington Post, members of the Secret Service detail that protects Trump and were with him backstage have raised concerns with others in the Secret Service that they were never informed that Crooks was being tracked. 

They also said they were not told that the local countersnipers eventually lost track of Crooks, or that another local officer, who was stationed on the roof of a building just outside the security perimeter of the rally, noticed Crooks perched with a gun.

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The Trump detail's first warning came when Crooks began to open fire at 6:11 p.m., eight minutes after Trump took the stage.

Some of Trump’s top advisers, who were located under a large white tent behind the stage, initially believed the sound of gunfire was fireworks and did not immediately take cover, the newspaper reported. 

Trump advisers told the outlet they first learned of concerns when the shooting was happening, stressing that they did not know why they were told of the suspicious person report so they could decide whether to delay Trump's speech.

"Nobody mentioned it. Nobody said there was a problem," Trump told Fox News' Jesse Watters. "They could've said, 'Let's wait for 15 minutes, 20 minutes, five minutes,' something. Nobody said — I think that was a mistake."

A Secret Service official told The Post that investigators are still working to determine whether anyone told Trump's security detail or other Secret Service operational teams about the suspicious person report.

The official said reports of suspicious people are fairly common at some public events and sometimes are not enough of a concern that plans need to be changed or that the senior official's security detail needs to be notified.

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Then-Secret Service Director Kimberly Cheatle, who has since resigned, said when asked at a House Oversight hearing last week why the Secret Service did not immediately delay the Trump speech or act faster when local police reported a suspicious person that such reports were fairly common.

"At a number of our protected sites, there are suspicious individuals that are identified all the time," she said. "It doesn't necessarily mean that they constitute a threat."

The questions from Trump's security detail and his advisers come after months of tensions between the former president's camp and top Secret Service officials ahead of the assassination attempt.

The former president's team has taken issue with Secret Service headquarters over various rejected requests, including for more magnetometers, more countersnipers and other specialty teams at events, according to The Post. The two sides were also at odds over security and logistics at the Republican National Convention that was held earlier this month in Milwaukee, Wisconsin, just days after the shooting.

Members of Congress have repeatedly raised concerns about how poor communication may have contributed to Crooks having an opportunity to shoot at Trump.

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Trump's team may have altered their security decisions had they been alerted that law enforcement officials were looking for a suspicious person just outside the security perimeter at the rally, according to The Post. However, it remains unclear whether such a decision would have led them to delay Trump's speech.

There are sometimes reports of suspicious people or activities at Trump's rallies that end up being nothing, someone from his team told The Post. This person said that when those incidents happen, the suspicious person is typically inside the Secret Service perimeter of the rally, meaning they have been screened by magnetometers aimed at stopping people with weapons from entering. But in the case of the July 13 rally, Crooks was located just outside the secure perimeter.

Col. Christopher L. Paris, head of the Pennsylvania State Police, told the House Homeland Security Committee last week that local countersnipers believed Crooks was suspicious because he was lingering around just outside the rally site without entering and that their concerns were further raised when they observed him with a golf range finder.

Paris said the countersnipers then sent a picture of Crooks to a Pennsylvania state trooper stationed in a command center with Secret Service agents.