Near as I can tell, the part that is broken is a trackbar brace that someone added, not the actual track bar which is below it. The trackbar itself is bolted onto the other (bottom) side of that bracket that is welded to the frame.
It also looks like in general that the previous owner really kludged up the steering. For example, those dual stabilizers are actually a bad thing to have. They make the steering system harder against them which can cause the power steering pump to overheat on a hot day on a twisty offroad trail. Dual stabilzers are seldom, if ever, needed on a Wrangler TJ. Most people that install them do so solely because they look cool & get talked into them by a commission-hungry salesman.
You also have a dropped Pitman arm which because there is no corresponding drop at the upper end of the track bar, should not be there. An undropped (OE factory) Pitman arm should be there instead. Replace that dropped Pitman arm with the factory OE Pitman arm.
Due to the kludged up steering system and especially the dropped Pitman arm, I would not be surprised if your Jeep has bump steer. Bump steer is when the steering is forced left/right as you drive over bumps or dips in the road.
I'd remove the trackbar, track bar brace, drag link, dual stabilizers, dropped Pitman arm, tie rod, & start over. I know that sounds harsh, especially since this was your first post, but the previous owner really didn't know what he was doing when it came to properly setting up a front end & steering system.
And actually, none of that is difficult... it sounds daunting but I could replace an entire steering system and install a new track bar in an hour to 90 minutes from start to finish. And I'm no mechanic.