Most Democrats have viewed the race as primarily between Crowley and Polis, but Lee holds sway among the partyís liberal wing.
One significant challenge for Lee is that fellow Californian Becerra is all but certain to ascend to Caucus chairman. Some Democrats doubt the Caucus would put two lawmakers from the same state into the chairman and vice chairman slots.
Terri Henderson, 6, center, whose mother is El Salvador, attends a rally with members of Congress at Union Station's Columbus Circle to announce the Restore Opportunity, Strengthen, and Improve the Economy (ROSIE) Act on July 29, 2014. The legislation provides incentives for government contractors to pay a living wage and other benefits that would help low-income workers.