• Bickers
• Contests a case
• Debates
• Defends one's side
• Disputes
• Doesn't let the issue die
• Engages in debate
• Exchanges words, so to speak
• Gives a line of reasoning
• Has words (with)
• Joins issue
• Makes a case
• Makes one's case
• Pleads a case
• Pleads in court
• Puts forth, as a case
• Squabbles
• Squabbles (with)
• States one's case
• Wrangles