Republican presidential candidate Mitt Romney has derided US President Barack Obama, saying his rival has "no agenda" worthy of a 2nd term in office.
At a campaign rally in Florida, he said the Obama campaign had been "reduced to petty attacks and silly word games".
Hours earlier, Obama decried Romney for shifting his positions, as election day draws nearer, saying the Republican suffers from "Romnesia".
The two will meet for their final debate, on foreign policy, in Florida on Monday.
A CNN poll on Friday suggested Romney has a slender 1% lead in Florida, while another separate poll gave a similar edge to Romney in Iowa and New Hampshire. Elsewhere, The Tennessean, which often endorses Democratic candidates for president, chose Mitt Romney.