“ultimately, voters themselves can hold the President accountable in an election, including the one just nine months from now.”
If Rubio really wanted to voters to hold the president accountable he would have asked for documents and witnesses so the voters could get the full story and make their choice as informed citizens.
By allowing the president to block all documents and block all first hand testimony, Rubio is actively preventing the voters from making informed decisions. Instead, the voters will hear a he said she said debate without all the relevant facts and be unable to hold the president accountable for his actions.
Let’s apply this simple test: If Rubio’s goal was to get voters to vote without knowing what the president did thereby being unable to hold the president accountable; is there anything Rubio would have to do differently?