President Obama and his surrogates are working hard to repair their relationship with organized labor, as Democrats kick off their first official day of the national convention Tuesday. 
Organized labor, which helped carry Obama into the presidency in 2008, has felt jilted in recent years -- over the president's decision to stall the Keystone XL pipeline, the Democrats' decision to hold the 2012 convention in union-unfriendly North Carolina and other moves. 
Some top union leaders are still in the Obama corner, but the president and his team are making sure to show the love as the labor movement signals it may lay low this year. The opening day line-up of speakers at the Democratic National Convention in Charlotte will feature Michelle Obama and keynoter San Antonio Mayor Julian Castro -- the unions, though, are not playing a central role this week. 

So in a Labor Day appeal to that valuable contingent, President Obama on Monday traveled to Toledo, Ohio -- home of the GM transmissions factory and Chrysler-owned Jeep assembly plant -- in an attempt to woo union members, if not leaders.