In a large saucepan, brown kielbasa. Remove from pan.

Add 2 t. oil to pan. Add garlic and cook 2 minutes. Add broth and beans. Heat to boiling.

Simmer at medium heat for 45 minutes.

Add potatoes; cover and cook 15 minutes. Stir in kale; cover and cook 10 minutes.

Stir in vinegar and 1/2 t pepper. Return kielbasa to pan and cook 5 minutes.