Barack Obama sewed up the Democratic presidential nomination, his Senate colleagues on Capitol Hill were straining to pull together their deeply torn party.

NPR: Next for Clinton: Vice President? Senate? Governor?

Since returning to Congress after abandoning his own presidential ambitions in January, Gephardt has largely shunned the limelight on Capitol Hill.

ECONOMIST: Gephardt's Low-Key Path to VP

As a result, the group is about to revamp its lobbying efforts on Capitol Hill and in states like Colorado and Minnesota--which will host the presidential nominating conventions later this year--to turn the tides on union expansion.

FORBES: Fears Of A Union Renaissance