Any online poll serves as an example of this. On the funny side, sometimes you get a whale named "Mr. Splashy Pants" or a boat named "Boaty Mc. Boat Face". Other times, you suggest "Hitler Did Nothing Wrong" as a new flavor of Mountain Dew.

For a legislative vote where some actors have a lot to gain or lose from the outcome, I'd expect the manipulation to get even more egregious than people trolling polls for amusement.