American farms like this iceberg lettuce field owned by Duda Farm Fresh Foods outside Salinas, Calif., are facing a dwindling supply of farmworkers from rural Mexico.
Kirk Siegler
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Democrat Elizabeth Colbert Busch and former South Carolina Gov. Mark Sanford debate for the South Carolina 1st Congresional special election in Charleston, S.C., on Monday.
Randall Hill/Reuters /Landov
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Sen. Marco Rubio, R-Fla., speaks at a Capitol Hill news conference with the Senate's "Gang of Eight," the bipartisan team pushing an immigration overhaul, on April 18.
J. Scott Applewhite/AP
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Charlotte Mayor Anthony Foxx addresses the Democratic National Convention in Charlotte, N.C., on Sept. 4. President Obama on Monday will nominate Foxx as his new transportation secretary.
J. Scott Applewhite/AP
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President Obama joked at the White House Correspondents' Dinner that he had experimented with bangs to liven up his second term, stealing a fashion tip from the first lady, Michelle Obama.
CSPAN
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