COLUMBIA, S.C. (AP) — Sen. Darline Graham said Monday she’s running for a full term to replace her late brother Lindsey Graham’s Senate seat.

“I’ve made a decision,” Darline Graham told Fox News Channel host Sean Hannity, according to a clip released of an interview set to air later Monday. “I’m in.”

The entrance of Darline Graham — sworn in last week to fulfill the remaining months of her late brother’s term, which expires in January — into the Republican scramble to select a new Senate nominee further complicates an already rushed process following Lindsey Graham’s death earlier this month.

A weeklong filing period opens Tuesday for the special Republican primary, which will be Aug. 11. On Friday, President Donald Trump said that Darline Graham had his “Complete and Total Endorsement” to seek the nomination, adding, “RUN, DARLINE, RUN!”

Last week, Gov. Henry McMaster appointed Darline Graham to serve the remainder of her brother’s term, which ends in January. In his announcement, McMaster made no reference to Darline Graham as a placeholder or symbolic appointment, although a person familiar with McMaster’s thinking but unauthorized to speak publicly said the governor, in selecting Darline Graham, had never contemplated that she would run for the seat herself.

Before the emergence of Darline Graham — and their Oval Office meeting after she was sworn in — Trump had previously suggested he could back a potential candidacy from Rep. Russell Fry, who said Monday he would officially enter the special primary.

Several other noteworthy politicians, including Rep. Ralph Norman, have already gotten in, and others like Lt. Gov. Pamela Evette have been eyeing a run. Rep. Nancy Mace announced Monday she would not enter the contest.

Darline Graham told Hannity said she had been “praying a lot” about how to navigate her new role.

“It is a tremendous amount of pressure,” she said.

“I know I’m a hard worker. I learned that from Lindsey,” Darline Graham said. “I feel like I can do it. I feel an inner peace about it. Will it be difficult? Yes.”

Funeral services for Lindsey Graham are scheduled to be held next week in Washington and South Carolina. A preliminary report from the medical examiner said he suffered a tear in his aorta.