CHICAGO — US Representative Jesse Jackson Jr., who has given no hint of when he will return to work four months after taking medical leave, will go back to the Mayo Clinic for a checkup ‘‘soon,’’ his father, the Rev. Jesse Jackson, said on Sunday.
The Democratic representative from Illinois was released from the Rochester, Minn., clinic in September after seeking treatment for bipolar disorder and gastrointestinal issues.
He has been with his family in Washington since, but he has not appeared in public, campaigned beyond a recent robocall, or said when he will return to Capitol Hill. His spokesmen will only say that Jackson remains on the ballot.
Jackson’s father, a civil rights leader, said the congressman will return to Mayo in the near future, but would not say when or for how long. He said only doctors could determine whether he will be able to return home immediately or require more care.
The elder Jackson said his son has an ‘‘overwhelming desire to get back to work,’’ but any predictions were premature.
Mayo Clinic spokeswoman Duska Anastasijevic said Jackson is not a current patient and she could not confirm whether he has plans to check into the clinic.
Many questions about the representative’s medical leave have gone unanswered. The timing of his leave also has invited scrutiny.
He remains under a House Ethics Committee investigation for ties to jailed former Governor Rod Blagojevich. The committee is looking into allegations Jackson was involved in discussions about raising money for Blagojevich’s campaign in exchange for an appointment to President Obama’s vacated US Senate seat.