MRocked what evidence kind of evidence do you need?
Goodlatte wrote and introduced SOPA
He has never faced a primary
Democrats despise him, have wanted to take him out for 20 yrs with no chance (very conservative district where primary IS the election) and now they have their chance since it is an open primary (Anti-Goodlatte swing vote)
Pretty much every tea-party in the region supports her
She's well known and well connected in the RP circles and if the RP national community backs her she brings a national force to bear on a local election (Rand Paul won with 70% of his money coming from out of state).
It's a June primary, Goodlatte has his hands tied because if he works to GOTV he's conceding a threat and then has to defend his support of SOPA, increasing the debt ceiling many times (which funded Obamacare and planned parenthood), Patriot act, No child left behind, his broken term limit pledge, his hypocritical gambling legislation, and a ton of other unconstitutional big-gov, corrupt votes.
With 850k registered voters and a mid-June primary a negligible amount of voters show. With all the above mentioned and brought to bear it is certainly possible.
Especially with the latest fury about SOPA and Goodlatte's major part in authoring/introducing that bill.