NEWYou can now listen to Fox News articles! After more than 100 days away from Capitol Hill, Rep. Tom Kean Jr., R-N.J., is set to return to Washington, D.C., in the coming weeks.Kean, 57, will be present for votes during the June 30 session, a spokesperson for the congressman confirmed to Fox News Digital. The two-term New Jersey lawmaker has been sidelined for months with a personal health issue and has yet to disclose the nature of the ailment. Kean has pledged to be transparent about his illness once he is back in Washington. The New Jersey Globe first reported the…