Longtime Democratic Sen. Ben Cardin reportedly said he won't seek re-election, clearing a path for a new face to join the Senate.

"It’s time," Cardin, 79, told The Baltimore Sun in an interview at his Pikesville home. "I always knew this election cycle would be the one I would be thinking about not running again, so it’s not something that hit me by surprise. I enjoy life. There are other things I can do."

Cardin is expected to make a more formal announcement later on Monday.

This is a developing story. Check back for updates.