FILE - In this Aug. 4, 2010, file photo President Barack Obama is introduced by AFL-CIO President Richard Trumka before he spoke about jobs and the economy at the AFL-CIO Executive Council in ... more 
FILE - In this Aug. 4, 2010, file photo President Barack Obama is introduced by AFL-CIO President Richard Trumka before he spoke about jobs and the economy at the AFL-CIO Executive Council in Washington. AFL-CIO leaders hope to smooth tensions at their executive council's annual winter meeting that starts Monday, March 12, 2012, in Orlando, Fla. Unions may be united in working to re-elect Obama, but their leaders also are trying to repair bitter divisions over his rejection of an oil pipeline from Canada to Texas. (AP Photo/Charles Dharapak, File) less 
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Associated Press | Photo By Charles Dharapak, File
Sat, Mar 10, 2012 12:07 PM EST