That would be an interesting way to rig an election, although Google* would have to know who you were planning to vote for before stopping or allowing you through. Maybe separate pages? or tracking which link the person came from like the candidates campaign emails.

*absolutely not saying Google is actually doing anything like this, but it's an interesting thought

Which web browser are you using? I've heard that Tor users get more CAPTCHAs, but I'm not sure if that is the case or not.

Use the audio version.