We're going to be hearing a lot about Sen. Susan Collins' voting streak during this campaign season. Maine's junior Republican senator had cast 3,764 consecutive votes as of Friday, March 14, according to her Senate staff.

I plan to write about it at a later date. But I was curious - and have some time during Congress's recess - to find out where she stands in the history of the Senate. Let's just go through the numbers and save the analysis for later.

The record for consecutive votes is held by Sen William Proxmire, a Wisconsin Democrat. He cast 10,150 consecutive votes between 1966 and 1988 (he was first elected in 1957), according to Don Ritchie, the Senate Historian.

Sen. Margaret Chase Smith, R-Maine, cast 2,941 consecutive votes between 1955 and 1968. The streak ended when she was in the hospital recuperating from an operation.

One thing Ritchie said to keep in mind was that the Senate voted much less in the 1950s and 1960s than it does today.

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