Boxer takes the positions she does not because AIPAC forces her, but because she can get progressives to campaign for her, donate money to her, and vote for her anyway.
Just when it seemed like the Democrats had a good chance of taking the White House, along comes a cynical power grab by GOP operatives to divvy up California's electoral votes based on the number of congressional districts each candidate wins.
As a group, conservative media figures are not exactly secure in their masculinity. It's no wonder they are so easily persuaded by political campaigns from alpha males and fear seeing women strip them of their power.