Here's an interesting bit of trivia, culled from data kept by the Center for American Women and Politics at Rutgers: no woman has won a GOP primary for an open US Senate seat since 2002 (Elizabeth Dole).
This streak will be tested this year, thanks to a whopping 11 open Senate seats -- five with departing Dems, six GOP.
The hopes appear to rest on two women; the other 9 races have just a couple of completely non-viable female in them on the Republican side.