At one point Thursday, the feisty interaction at the start of the president's visit to the Valley sent "Jan Brewer" to No. 8 on Twitter's trending topics in the U.S. Online sales of Brewer's book "Scorpions for Breakfast" exploded. And the "finger wag" led to a petition by state Democrats asking Brewer to apologize to the president.
Brewer continued to defend her actions Thursday, saying she meant no disrespect to the president and explaining that she often gestures when she speaks. She called allegations that their confrontation was a publicity stunt "absolutely ridiculous."
In a Thursday night interview with ABC's Diane Sawyer, Obama shrugged off the tarmac encounter.
"What I have discovered is that -- I think it's always good publicity for a Republican if they're in an argument with me."
He added: "But this was really not a big deal."