Two-thirds of Florida voters support the amendment, according to a Florida Atlantic University poll released Wednesday. The poll said 67 percent of voters support Amendment 2 on the Nov. 8 ballot, while about 30 percent oppose it. That would be enough support to top a 60 percent threshold for approving constitutional amendments. A similar ballot proposal failed in 2014, when it received 58 percent of the vote. The poll of 500 likely voters was conducted from Oct. 21 to Oct. 23 and has a margin of error of 4.3 percentage points.