Type 1: Separate hard lumps, like nuts (hard to pass)
Type 2: Sausage-shaped, but lumpy
Type 3: Like a sausage but with cracks on its surface
Type 4: Like a sausage or snake, smooth and soft
Type 5: Soft blobs with clear cut edges (passed easily)
Type 6: Fluffy pieces with ragged edges, a mushy stool
Type 7: Watery, no solid pieces (entirely liquid)
Types 1 and 2 indicate constipation; 3 and (especially) 4 are the preferred types of stools as they are the easiest to pass. Types 5-6 are more symptomatic of diarrhea, while type 7 may be a sign of Cholera.
Use the last dump you took as reference to which way you should vote. Personally I shit a 4 about an hour ago, but yesterday is was definitly a 6.
