"Centrists betrayed the values of the Democratic Party" [View all]
What are some of the things that come up if you google that?
First hit: http://www.jackwadeshow.com/wades-words/are-centrist-dems-democrats-or-demorats
Power Struggle: Inside The Battle For The Soul Of The Democratic Party
http://www.huffingtonpost.com/2010/04/08/power-struggle-inside-the_n_529884.html
Liberal Democrat activists say leaders took them down a centrist blind alley
http://www.theguardian.com/politics/2015/may/10/liberal-emocrats-clash-over-serious-mistakes-in-election-strategy
Alan Grayson on Democrats In Name Only: They betray our side
http://americablog.com/2013/10/alan-grayson-democrats-name-betray-side.html
Senate Democrats Betray Their Supporters By Scheduling A Vote On Keystone XL
http://www.politicususa.com/2014/11/12/senate-democrats-betray-supporters-scheduling-vote-keystone-xl-pipeline.html
And so on.
Traditional Democrats ain't the ones who hijacked the Party's message or betrayed the values of Party. They always were the Party. Duh.