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Three top Republican strategists are on the short list to head up the National Republican Senatorial Committee, with Kansas Sen. Jerry Moran expected to announce his pick within days.

Moran has interviewed Rob Collins, Mike Shields and Kyle Ruckert for the job, according to several GOP sources.

Collins is a former top aide to House Majority Leader Eric Cantor who maintains significant influence in Cantor-world. He left the Hill in 2010 to head up the American Action Network, where he raised more than $30 million for independent expenditures. He left the group to head to Purple Strategies, the high-powered bipartisan public relations firm based in Alexandria.

Shields served this cycle as political director at the National Republican Congressional Committee. He ran the committee's independent expenditure unit in the 2010 cycle after four years as chief of staff to Rep. Dave Reichert.

Ruckert, Louisiana Sen. David Vitter's chief of staff, managed Vitter's campaign in both 2004 and 2010. He helped former Sen. Rick Santorum's presidential campaign in Louisiana in 2012, though he's back on the Hill now.

The NRSC's current executive director, Rob Jesmer, is leaving at the end of the week to head to FP1 Strategies.