Obama’s lead over Romney has shrunk to just under 3 points, 47.7 percent to 45 percent, with 3.8 percent undecided, according to a new Detroit News/WDIV Local 4 poll of likely voters. Obama’s lead was 6.7 points earlier this month and has eroded to within the poll’s 3.8 percentage point margin of error. It’s the smallest advantage for the Democratic president during the Michigan campaign.

“Mitt Romney’s numbers … are where they would need to be if he hopes to pull off an upset next week,” said Richard Czuba of Glengariff Group Inc., which conducted the poll. “But the question is: Is there enough for a final push?”…

Obama has maintained his lead among likely voters on handling foreign affairs and better understanding their values, but for the first time Romney has a slight edge on handling the economy.