Toxic Powder Sent to Rep. Raul Grijalva Who Had Urged AZ Boycott

An envelope arrived with swastikas drawn on the outside and a white powdery substance on the inside, Adam Sarvana, Grijalva’s spokesman, told the Arizona Daily Star newspaper.

It’s not the first time his office has been the target of threats, the Daily Star said.

Grijalva received death threats in April, shortly after SB1070, the anti-illegal-immigrant law, was signed. He called for a boycott in response. He closed his Tucson and Yuma offices as a result of the threats, the Daily Star said.

In July, after he called off the boycott, staffers found a bullet and a shattered window inside his Yuma office, the Daily Star said.

Grijalva appeared on a national news talk show this week complaining about racist tactics being used during his campaign for re-election.

He has since backed off, saying the boycott was intended to force lawmakers to think about the law's consequences. Further, he said, the Justice Department "took the heart out of many of the points of contention," and, finally, that the boycott cost people their jobs.

The boycott has, indeed, hurt Arizonans. But, for the record, we don't believe that every boycotting group took its marching orders from Grijalva or even knew of his involvement.

Many other voices around the state, country and world condemned the measure, which is arguably unconstitutional and may well promote racial profiling. The law and political posturing have been hugely damaging to our state's image.

(CNN) -- The suspicious powder inside a swastika-adorned package sent to an Arizona congressman is "nontoxic," an FBI spokesman said Friday.

Staffers checking mail in the Tucson, Arizona, office of U.S. Rep. Raul Grijalva on Thursday found a white, powdery substance and drawings of two swastikas inside an envelope, Grijalva campaign spokesman Adam Sarvana told CNN.

Almost a dozen people were in the office when the incident happened around 12:30 p.m. Thursday (3:30 p.m. ET), he said. All of them were checked on-scene by local authorities and sent home.

Scientists at an FBI laboratory in Phoenix, Arizona, conducted a full analysis of the substance, according to Sarvana. Those tests came back negative midday Friday, according to FBI Special Agent Manuel Johnson.

Johnson said the FBI would have no further comments, as "the investigation is ongoing." U.S. Capitol Police are also participating in the investigation, according to Sgt Kimberly Schneider, a spokeswoman for the force.