Leahy said he passed on the Defense Appropriations Subcommittee so he could stay atop his current panel and thus remain a leading Senate voice on foreign policy.
When it comes to the Defense Subcommittee, Harkin is second to Leahy in seniority on the subcommittee, but a Harkin spokeswoman said Wednesday that he intends to continue as chairman of the Appropriations Subcommittee on Labor, Health and Human Services and Education.
Durbin ranks next on the seniority list. His office declined to comment on whether he would take the post.
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.