CHARLOTTE, N.C. -- President Barack Obama consoled victims of Hurricane Isaac along the Gulf Coast on Monday and stoked the enthusiasm of union voters in the industrial heartland, blending a hard political sell with a softer show of sympathy on the eve of the Democratic National Convention.
At times like these, "nobody's a Democrat or a Republican, we're all just Americans looking out for one another," the president said after inspecting damage inflicted by the storm and hugging some of its victims. He was flanked by local and state officials of both parties as he spoke.
There was nothing nonpartisan about his earlier appearance in Toledo, Ohio. There, the president said Republican challenger Mitt Romney should be penalized for "unnecessary roughness" on the middle class and accused him in a ringing Labor Day speech of backing higher taxes for millions after opposing the 2009 auto industry bailout.
Obama's trip to LaPlace, La., was a televised interlude in the rough and tumble of the political campaign, four days after Romney accepted his party's presidential nomination at the GOP Convention in Tampa, Fla., and three days before the president is nominated by Democratic delegates in Charlotte.
Unlike Obama, Romney made no mention of federal aid in his trip to Louisiana, which was designed to demonstrate his own concern for victims of the storm.
First lady Michelle Obama was already in the Democratic convention city as her husband spent his day blending the work of president and candidate.
He doesn't arrive in North Carolina until later in the week, after concluding campaign stops in battleground states.
In the flooded neighborhood, he said he had promised local residents "we're going to make sure at the federal level, we are getting on the case very quickly about figuring out what exactly happened here, what can we do to make sure that it doesn't happen again and expediting some of the decisions that may need to be made to ensure that we have the infrastructure in place to protect people's property and to protect people's lives."
Obama noted that last week's flooding was in a different region, leaving open the question of what the government might do to prevent a recurrence.
A few hundred miles away in Charlotte, the conversion of the Time Warner Cable Arena into a political convention hall was nearly complete.
A few blocks from where delegates will gather on Tuesday, union members staged a Labor Day march. Though supporting Obama, they expressed frustration that he and the Democrats chose to hold the convention in a state that bans collective bargaining for teachers and other public employees.
There was disagreement among the ranks of the marchers. "I understand their frustration . . . but do they really think they're going to be better off with Romney?" asked Phil Wheeler, 70, a delegate from Connecticut and a retired member of United Auto Workers Local 376 in Hartford.
Democrats chose the state to underscore their determination to contest it in the fall campaign. Obama carried North Carolina by 14,000 votes in 2008, but he faces a tough challenge this time.