Not talking about evolving a new position, but nakedly jumping from one position to another out of pure political ambition.
When she represented a rural Congressional district in NY she was very pro gun, maybe the most pro gun Democratic Congressperson.
http://www.msnbc.com/the-cycle/the-flip-flopping-nature-kirsten-gillibran
While serving her upstate constituents, on immigration and guns she sounded more like a Texas conservative than a New York liberal. She opposed efforts to extend state drivers licenses to illegal immigrants, and earned herself an A rating from the NRA, sponsoring a bill to delete background check information after 24 hours.
Then, she was appointed to Hillary Clintons Senate seat in 2008. On the day of her appointment, Mayor Michael Bloomberg publicly criticized her for her staunch opposition to gun control.
Now she portrays herself as a strong anti gun activist.
Gillibrand went after the NRA during her town hall event, during which she claimed the nonprofit Second Amendment organization car[ed] more about their profits than the American people and referred to them as the worst organization in this country.
. . .
Gillibrand called us the worst org in the country, but when she represented NY20, she wrote us: I appreciate the work that the NRA does to protect gun owners rights, and I look forward to working with you for many years,' the NRA tweeted. Now that shes looking to crack 1%, shell say anything.
She is the only Democratic Senator I wish would get primaried and sent to pasture.