President Obama reemerged on the campaign trail Thursday with a call for unity and bipartisanship in the aftermath of Hurricane Sandy, saying that Americans “rise and fall as one nation, one people.”

Obama’s appearance in Green Bay, Wis. followed a speech earlier in Virginia by Republican Mitt Romney, who attacked Obama’s handling of the economy for the first time since Sandy devastated New Jersey and New York.

The separate swing-state stops showed both candidates are returning to aggressive campaigns just five days before the election. They also opened a period in which Obama and Romney will crisscross the country at a breakneck pace to visit as many battlegrounds as possible.

Polls show the two deadlocked in a tight race, with a Fox News poll released Thursday finding them each with 46 percent support.