Per the article, they were attempting to recruit two other candidates to run against her and then wrote the race off when she was only candidate remaining...until she was shown to have good fundraising numbers and was polling well and are now giving the race a second look.
She’s certainly better by far than Rodgers or Camp. Despite the union organizer who calls her gaffe prone, nobody can remember any serious stumbles.
She comes from the establishment but has been friendly with the tea party and has a reputation for integrity.
There’s more info on the earlier thread.