I googled “mitt romney galvanized trump supporters?” and got these:

Mitt Romney’s Trump Attack May Have Sealed Republican …

fortune.com/…/mitt–romney-donald-trump-attack-republican-party-fate/

22 hours ago – Romney’s denunciation will likely galvanize Trump’s supporters, creating an even deeper GOP rift. On Thursday, Mitt Romney gave a speech in  …

Mitt Romney gives election to Donald Trump

http://www.newstalkflorida.com/mitt–romney-gives-election-to-donald-trump

22 hours ago – By attacking Mr. Trump, the former governor galvanized the Trump …Romney’s remarks, but so will Trump supporters who will claim, “See,  …

Mitt Romney: Donald Trump is a ‘phony, a fraud … – CNN.com

http://www.cnn.com/2016/03/03/…/mitt–romney-presidential-race-speech/

CNN

17 hours ago – Mitt Romney delivered a sweeping broadside against Donald Trump …there are few signs it will dissuade Trump’s loyal core of supporters who  …