Alabama, Colorado, Iowa, Massachusetts, Minnesota, North Carolina, Tennessee
Colorado is called "non-committed delegate"
Massachusetts and North Carolina is called "no preference"
Alabama, Colorado, Iowa, Massachusetts, Minnesota, North Carolina, Tennessee
Colorado is called "non-committed delegate"
Massachusetts and North Carolina is called "no preference"
Not technically an option in Texas, but you can just leave the selection for a given candidate blank.
Of the 20-odd races in my district, I think I ended up voting for maybe four? Everyone else was either outside my familiarity, dogshit candidates all the way down, or uncontested.