In her bid to become Maryland’s next U.S. senator, Angela Alsobrooks will get a rare, prime-time moment in the spotlight Tuesday night as she takes to the stage of the Democratic National Convention in Chicago.

Alsobrooks is scheduled to take the stage at about 10 p.m., during the most-watched hour of the night that’s likely to be carried live on national broadcast TV networks.

Currently the Prince George’s County executive, Alsobrooks is locked in a campaign with Republican former governor Larry Hogan for an open U.S. Senate seat. It’s one of a handful of Senate elections that could determine control of the chamber.

The Alsobrooks camp is hoping for a boost from her appearance at the convention, where the party faithful are newly energized by the candidacy of presidential nominee Kamala Harris.

Alsobrooks will talk about her personal and professional relationship with Harris, forged when both were prosecutors — Harris as California’s attorney general and Alsobrooks as the Prince George’s County state’s attorney before she became county executive.

The two have campaigned for each other, and the pair have appeared together in Maryland three times already since Memorial Day. They traded compliments during an event last week in Prince George’s County focused on prescription drug prices.

Alsobrooks was not available for interviews ahead of her speech. She posted on social media Tuesday afternoon that she was excited to speak at the convention. She said she’ll share why her “friend and mentor” Harris will be “an incredible president.”

In her remarks, Alsobrooks is also expected to lean into the convention’s daily theme of “A Bold Vision for America’s Future.” She’s expected to emphasize why Harris is the best choice to lead the nation in the future.

“Angela is honored to be delivering a keynote address at the DNC,” said Connor Lounsbury, a senior advisor to the Alsobrooks campaign. “She’ll be speaking not only to the 14-year friendship she and Vice President Kamala Harris share, but the future they are both fighting for.”

He added: “We know that Maryland will determine the Senate majority and in order to fight for that future where our freedoms are protected, we must win in Maryland.”

The prime-time slot is a chance for Alsobrooks to make a case for voting for Harris, but it’s also a chance for Alsobrooks to draw attention to her own race, raising her national profile and perhaps campaign contributions. Elected officials, candidates and activists jockey for one of the dozens of daily convention speaking slots that start in the late afternoon and usually culminate with a headliner just before 11 p.m.

Convention speeches have fueled the rise of politicians for future success — Barack Obama, Ronald Reagan, William Jennings Bryan — and Tuesday’s main stage slot provides Alsobrooks a chance to introduce herself beyond Maryland voters.

In addition, Alsobrooks will appear at a meeting of the national party’s Asian American and Pacific Islanders Caucus on Wednesday. It’s part of the programming at McCormick Place, a secondary site that’s hosting meetings and “DemPalooza,” a series of trainings, panel discussions and other activities, much of them open to the public.

Alsobrooks and Democrats have made the case for months that electing her, and defeating Hogan, will ensure that Democrats can set the agenda in Washington on issues like protecting abortion access and cracking down on guns.

If Hogan is elected, Democrats say, he could push the Republicans into the majority position. And Hogan could play a pivotal role for the GOP.

“Republicans know Hogan could be the 51st seat they need to push forward an agenda that’s wildly out of touch,” Karen Darkes, executive director of the Maryland Democratic Party, said at an event last week.

During the Democratic National Convention, party leaders are expected to emphasize the need not only to elect Harris as president, but to give her Democratic majorities in the Senate and the U.S. House of Representatives to help enact her policies.

“We have to understand that when she becomes the first woman president, she can’t do it alone. She’s going to have to work alongside Congress,” Baltimore Mayor Brandon Scott, wearing a Harris “duly elected incumbent” T-shirt, said last week.

Most election predictors and prognosticators rate Maryland’s Senate race as “leaning” or “likely” Democratic, based in part on Maryland’s four-decade run of sending only Democrats to the Senate and the strong voter registration advantage that the party has.

But there’s been very little independent polling since the primary election to gauge the state of the race, and Democrats acknowledge that Hogan is a strong candidate who left office with high approval ratings after two terms as governor.

Hogan sought to counteract any potential Alsobrooks bump from the convention on Monday by releasing videos featuring Democratic and independent women who support him.

“Marylanders on the right and the left are sick and tired of divisiveness and dysfunction, and seeing nothing ever get done in Washington while local communities and families pay the price,” Hogan said in a statement.