County Judge Judy Goldman said if Barry Seltzer, 46, meets bond, he will be under close supervision akin to house arrest, the Sarasota Herald-Tribune reported Friday.
He also will be ordered to stay away from any political candidates, including Harris.
"Your statements indicate an intent to do exactly what was done: to scare the daylights out of someone," Goldman told Seltzer.
Seltzer drove his Cadillac rapidly toward Harris as she was campaigning on a street corner. He later said he was expressing his political views.
Harris is a former Florida Secretary of State and was a major figure in the recount dispute after the presidential election in 2000. The Supreme Court finally called off the recount after five weeks, and President Bush won the election over former Vice President Al Gore.