Rep. Thomas Kean Jr. (R-NJ) said in a Tuesday statement that he will return to in-person work after a prolonged absence on Capitol Hill due to an unspecified health issue in a “matter of weeks.”

Kean, who is running unopposed in New Jersey‘s GOP primary for the state’s 7th Congressional District on Tuesday, said in his statement that he is “more energized than ever” to fight for the district.

“Right now I am focused on my recovery and under the advice of healthcare professionals, I will transition from virtual work to in person work within a matter of weeks,” the 57-year-old lawmaker wrote. “At that time I will be completely transparent as to the nature of my medical condition.”