It does matter if it's 99 or 999. It also matters what he missed and why. But only if you're trying to use this as some disqualifier for the presidency.
Him having the worst record is not debatable. I think obama held the record previously.
Seriously, folks, Rubio is so similar to obama in 2008, it's almost laughable. Voting just enough to keep his job, running for senate to run for POTUS, agreeing to anything along the way, probably in a little over his head, and zero meaningful legislative experience to speak of.
What in the world has rubio achieved? what legislation did he lead (besides DREAM, which obama did first lol)